Yellow Pages

Does a Yellow Pages Ad Still Work For You?

By Raymund Flandez

Even in the age of paid-search advertising, many local businesses appear to be sticking with the tried-and-true to get new customers. Yep, that’s right, the yellow pages.

yellow pagesAbout six of 10 small businesses continue to advertise in a printed yellow-pages directory, according to a phone survey from AT&T Advertising & Publishing, a yellow-pages publisher. The survey polled 1,000 businesses with 25 or fewer employees, the sample drawn from Dun & Bradstreet’s list of companies in Atlanta, San Francisco, Connecticut, Chicago, Dallas, Detroit, Milwaukee, Oklahoma, San Diego and Charlotte, N.C.

While some of these small businesses have integrated Internet advertising into their marketing, the survey shows the printed yellow pages leads a list of top call generators. About one in five (21%) of respondents cited it as the source that produces the most calls from potential customers. Word-of-mouth is a close second, cited by 19% of respondents, and company Web sites are next, cited by 12%.

An independent survey by the Kelsey Group, a research firm specializing in yellow pages and related advertising, finds that 61% of Americans say they turn to the printed yellow-pages listings to find local business information; 13% say they use search engines.

But the yellow pages are changing with the times. AT&T offers its own Internet Yellow Pages and with video, too. In the AT&T survey, 53% of small businesses say they expect to buy online ads with videos within the next two years. But you don’t need to spend a lot to do online video on your own, especially with YouTube.

Readers, how important is a yellow-pages ad or listing for a local business? And from where are you getting the most interest? The yellow pages or the Internet?

*http://blogs.wsj.com/independentstreet/2007/12/20/does-a-yellow-pages-ad-still-work-for-you/

FIREWALL

Now computers in the world has connect to others so we have to prevent how to make safe to our data. lets go

FIREWALL
A firewall is a device or set of devices designed to permit or deny network transmissions based upon a set of rules and is frequently used to protect networks from unauthorized access while permitting legitimate communications to pass.

Many personal computer operating systems include software-based firewalls to protect against threats from the public Internet. Many routers that pass data between networks contain firewall components and, conversely, many firewalls can perform basic


History

The term firewall originally referred to a wall intended to confine a fire or potential fire within a building. Later uses refer to similar structures, such as the metal sheet separating the engine compartment of a vehicle or aircraft from the passenger compartment.

Firewall technology emerged in the late 1980s when the Internet was a fairly new technology in terms of its global use and connectivity. The predecessors to firewalls for network security were the routers used in the late 1980s:[2]

Clifford Stoll's discovery of German spies tampering with his system[2]
Bill Cheswick's "Evening with Berferd" 1992 in which he set up a simple electronic to observe an attacker[2]
In 1988, an employee at the NASA Ames Research Center in California sent a memo by email to his colleagues [3] that read, "We are currently under attack from an Internet VIRUS! It has hit Berkeley, UC San Diego, Lawrence Livermore, Stanford, and NASA Ames."
The Morris Worm spread itself through multiple vulnerabilities in the machines of the time. Although it was not malicious in intent, the Morris Worm was the first large scale attack on Internet security; the online community was neither expecting an attack nor prepared to deal with one.[4]
First generation: packet filters

The first paper published on firewall technology was in 1988, when engineers from Digital Equipment Corporation (DEC) developed filter systems known as packet filter firewalls. This fairly basic system was the first generation of what became a highly involved and technical internet security feature. At AT&T Bell Labs, Bill Cheswick and Steve Bellovin were continuing their research in packet filtering and developed a working model for their own company based on their original first generation architecture.[5]

Packet filters act by inspecting the "packets" which transfer between computers on the Internet. If a packet matches the packet filter's set of rules, the packet filter will drop (silently discard) the packet, or reject it (discard it, and send "error responses" to the source).

This type of packet filtering pays no attention to whether a packet is part of an existing stream of traffic (i.e. it stores no information on connection "state"). Instead, it filters each packet based only on information contained in the packet itself (most commonly using a combination of the packet's source and destination address, its protocol, and, for TCP and UDP traffic, the port number).[6]

TCP and UDP protocols constitute most communication over the Internet, and because TCP and UDP traffic by convention uses well known ports for particular types of traffic, a "stateless" packet filter can distinguish between, and thus control, those types of traffic (such as web browsing, remote printing, email transmission, file transfer), unless the machines on each side of the packet filter are both using the same non-standard ports.[7]

Packet filtering firewalls work mainly on the first three layers of the OSI reference model, which means most of the work is done between the network and physical layers, with a little bit of peeking into the transport layer to figure out source and destination port numbers.[8] When a packet originates from the sender and filters through a firewall, the device checks for matches to any of the packet filtering rules that are configured in the firewall and drops or rejects the packet accordingly. When the packet passes through the firewall, it filters the packet on a protocol/port number basis (GSS). For example, if a rule in the firewall exists to block telnet access, then the firewall will block the TCP protocol for port number 23. [9]
[edit] Second generation: "stateful" filters
Main article: Stateful firewall

From 1989-1990 three colleagues from AT&T Bell Laboratories, Dave Presetto, Janardan Sharma, and Kshitij Nigam, developed the second generation of firewalls, calling them circuit level firewalls.

Second-generation firewalls, in addition to what first-generation look for, work up to layer 4 (transport layer) of the OSI model. Therefore they regard placement of each individual packet within the packet series. This technology is generally referred to as a stateful packet inspection as it maintains records of all connections passing through the firewall and is able to determine whether a packet is the start of a new connection, a part of an existing connection, or is an invalid packet. Though there is still a set of static rules in such a firewall, the state of a connection can itself be one of the criteria which trigger specific rules.

This type of firewall can actually be exploited by certain Denial-of-service attacks which can fill the connection tables with illegitimate connections.
[edit] Third generation: application layer
Main article: Application layer firewall

The key benefit of application layer filtering is that it can "understand" certain applications and protocols (such as File Transfer Protocol, DNS, or web browsing), and it can detect if an unwanted protocol is sneaking through on a non-standard port or if a protocol is being abused in any harmful way.

An application firewall is much more secure and reliable compared to packet filter firewalls because it works on all seven layers of the OSI model, from the application down to the physical Layer. This is similar to a packet filter firewall but here we can also filter information on the basis of content. Good examples of application firewalls are MS-ISA (Internet Security and Acceleration) server, McAfee Firewall Enterprise & Palo Alto PS Series firewalls. An application firewall can filter higher-layer protocols such as FTP, Telnet, DNS, DHCP, HTTP, TCP, UDP and TFTP (GSS). For example, if an organization wants to block, all the information related to "foo" then content filtering can be enabled on the firewall to block that particular word. Software-based firewalls (MS-ISA) are much slower than hardware based stateful firewalls but dedicated appliances (McAfee & Palo Alto) provide much higher performance levels for Application Inspection.

In 2009/2010 the focus of the most comprehensive firewall security vendors turned to expanding the list of applications such firewalls are aware of now covering hundreds and in some cases thousands of applications which can be identified automatically. Many of these applications can not only be blocked or allowed but manipulated by the more advanced firewall products to allow only certain functionality enabling network security administrations to give users functionality without enabling unnecessary vulnerabilities. As a consequence these advanced version of the "Third Generation" firewalls are being referred to as "Next Generation" and surpass the "Second Generation" firewall. It is expected that due to the nature of malicious communications this trend will have to continue to enable organizations to be truly secure.
[edit] Subsequent developments

In 1992, Bob Braden and Annette DeSchon at the University of Southern California (USC) were refining the concept of a firewall. The product known as "Visas" was the first system to have a visual integration interface with colors and icons, which could be easily implemented and accessed on a computer operating system such as Microsoft's Windows or Apple's MacOS. In 1994 an Israeli company called Check Point Software Technologies built this into readily available software known as FireWall-1.

The existing deep packet inspection functionality of modern firewalls can be shared by Intrusion-prevention systems (IPS).

Currently, the Middlebox Communication Working Group of the Internet Engineering Task Force (IETF) is working on standardizing protocols for managing firewalls and other middleboxes.

Another axis of development is about integrating identity of users into Firewall rules. Many firewalls provide such features by binding user identities to IP or MAC addresses, which is very approximate and can be easily turned around. The NuFW firewall provides real identity-based firewalling, by requesting the user's signature for each connection. authpf on BSD systems loads firewall rules dynamically per user, after authentication via SSH.
*http://technogeektips.wordpress.com/2011/03/29/is-your-password-hacked-protect-your-computer-from-hackers/
*http://en.wikipedia.org/wiki/Firewall_%28computing%29

The Essential Guide to Firewalls

John Edwards

Firewalls play a central role in IT security, standing between enterprise networks and the outside world to protect computers, applications and other resources from external attack.

While there are several types of firewalls, the technology can be broadly defined as a collection of related security programs that are stored on a network gateway server and collectively safeguard network assets from users on other networks.
Firewall Types

While all firewalls run software, the firewall market itself is split into two general categories: hardware and software. Hardware firewalls are dedicated security appliances on which security software is preinstalled, typical on a proprietary OS. Software firewalls, on the other hand, can usually be installed on any available server that is equipped with a general-purpose network OS such as Windows or Linux.

Businesses usually select firewalls on the basis of needs and preferences that are unique to each company. Common considerations include: the firewall architecture (hardware or software), the number of concurrent firewall sessions required, the range and types of external access required, the type and number of VPN (virtual private network) protocols needed, the number of concurrent VPNs that require protection, the preferred kind of management user interface (command line, graphical or Web-based), and the need for high-availability features.

Firewall prices can range from less than $100 for a basic, no-frills software product that is designed to protect a home or small-business network, to $20,000 and more for an industrial-strength hardware appliance that is engineered to safeguard enterprise resources.
Firewall Operation

Since no two business networks are alike, vendors offer many different types of firewall approaches (both hardware- and software-based) that are designed meet specific customer needs. The fundamental approaches can be separated into packet-filtering, circuit-level and application-level categories.

Packet-Filtering Firewalls: In its most basic form, a firewall does nothing but filter packets. This means that the firewall accepts or rejects IP packets on the basis of predefined rules. With packet filtering, the firewall carefully scrutinizes each packet's protocol and address information; content and context data are not considered. The main advantages of packet-filtering firewalls are their relative simplicity, low cost, and fast and easy deployment attributes. Software-only firewalls for home and small business are typically of this variety, including the firewall that is built in to more recent versions of Windows.

Circuit-Level Firewalls: This type of firewall doesn't simply accept or reject packets, it also decides whether a connection is valid according to a set of configurable rules. If everything checks out, the firewall opens a session and allows traffic to flow in only from the authenticated source. The traffic may also be permitted to proceed for only a limited period of time. In addition, the firewall may perform connection validation on the source IP address and/or port, the destination IP address and/or port, the protocol used, user IDs, passwords, the time of day or, most likely, several of these conditions. In addition, packet-level filtering may also take place.

The big drawback to circuit-level firewalls is that they function at the transport layer and therefore may necessitate a significant modification of the transport-function programming. This can impact the performance or operation of a network. Also, circuit-level firewalls require more expertise to install and maintain.

Application-Level Firewalls: With this approach, the firewall acts as an application proxy, supplying all data exchanges with the remote system. The idea behind this concept is to make the server behind the firewall invisible to the remote system.

An application-level firewall can accept or reject traffic based on a specific set of rules. The firewall may, for example, allow some commands to proceed to a server while rejecting others. The technology can also be used to restrict access to specified file types, as well as to provide different access levels to authenticated and nonauthenticated users. Application-level firewalls tend to be preferred by users who require detailed traffic monitoring and logging on the host, since the addition of these activities is relatively simple and doesn't further impact performance. IT administrators can set an application-level firewall to trigger alarms and notifications in the event that a predefined condition occurs. Application gateways are typically deployed on a separate network-connected computer, commonly called a proxy server

Stateful Multilevel Firewalls: Typically offered by vendors as "best-of-breed" solutions, this approach aims to combine the best attributes of multiple firewall types. Stateful multilevel firewalls are designed to perform network-level packet filtering while recognizing and processing application-level data. These firewalls often provide superior network protection but can be very expensive.
Add-Ons

Most firewall vendors offer an array of add-on features that are designed to provide capabilities that extend well beyond basic firewall services. Such features include anti-virus protection, content filtering, intrusion prevention, and activity and usage reporting. Given the rapidly changing pace of network security, it's a good idea for a business to purchase a product that it can easily upgrade for enhanced performance and to accommodate new capabilities.

*http://www.itsecurity.com/features/essential-guide-firewalls-061208/

Weight loss

At it's most basic, losing weight is about burning more calories than you eat. That seems simple enough, but if were really that simple, none of us would have a weight problem. Too often we take drastic measures to see results -- diets, pills or those weird fitness gadgets on infomercials that promise instant success. Maybe you lose weight but what happens when you go off that diet or stop that crazy workout program? You gain it all back and more. The real secret to weight loss is to make small, lasting changes. The key is to forget about instant results and settle in for the long run.

Rules of Weight Loss
To lose one pound of fat, you must burn approximately 3500 calories over and above what you already burn doing daily activities. That sounds like a lot of calories and you certainly wouldn't want to try to burn 3500 calories in one day. However, by taking it step-by-step, you can determine just what you need to do each day to burn or cut out those extra calories. Below is a step by step process for getting started.

1. Calculate your BMR (basal metabolic rate). Your BMR is the amount of calories your body needs to maintain basic bodily functions like breathing and digestion. This is the minimum number of calories you need to eat each day. Keep in mind that no calculator will be 100% accurate, so you may need to adjust these numbers as you learn more about your own metabolism.

2. Calculate your activity level. For a week or so, keep an activity journal and use a calorie calculator to figure out how many calories you burn while sitting, standing, exercising, lifting weights, etc. throughout the day. Another, easier option is to wear a heart rate monitor that calculates calories burned. After a week, add your totals for each day and average them out to get a general idea of how many calories you burn each day.

3. Keep track of how many calories you eat. For at least a week, enter and track your calories online (e.g., with Calorie Count) or use a food journal to write down what you eat and drink each day. Be as accurate as possible, measuring when you need to or looking up nutritional information for restaurants, if you eat out. After a week, add your totals for each day and average them out to get a general idea of how many calories you eat each day.

4. Add it up. Take your BMR number and add your activity calories. Then subtract your food calories from that total. If you're eating more than your BMR + your activity calories, you're at risk for gaining weight. Example:

Mary's BMR is 1400 calories and she burns 900 calories with regular exercise, walking around and doing household chores. To maintain her weight, she should be eating 2300 calories (1400 + 900= 2300). However, after keeping a food journal, Mary finds that she's eating 2550 calories every day. By eating 250 more calories than her body needs, Mary will gain about a pound every 2-3 weeks.

This example shows how easy it is to gain weight without even knowing it. However, it's also easy to lose weight, even if the process itself can be slow. You can start by making small changes in your diet and activity levels and immediately start burning more calories than you're eating. If you can find a way to burn an extra 200 to 500 calories each day with both exercise and diet, you're on the right track. Try these ideas:
Instead of... Do this...
An afternoon Coke Drink a glass of water. (calories saved: 97)
An Egg McMuffin Eat a small whole wheat bagel +1 Tbsp of peanut butter (calories saved: 185)
Using your break eat sweets Walk up and down a flight of stairs for 10 minutes (calories burned: 100)
Hitting the snooze button Get up 10 minutes early and go for a brisk walk (calories burned: 100)
Watching TV after work Do 10 minutes of yoga (calories burned: 50)

Total Calories Saved: 532 (based on a 140-pound person)

How Much Exercise Do I Need?

Exercise is an important weight loss tool, but how much you need varies from person to person. The guidelines recommend at least 250 minutes per week, which comes out to about 50 minutes, 5 days a week. If you're a beginner, start small, for example with 3 days of cardio for 15-30 minutes, gradually adding time each week to give your body time to adapt. Learn more about getting in shape and getting started with exercise.

Source:

Donnelly, J.; Blair, S.; Jakicic, J.; et al. Appropriate Physical Activity Intervention Strategies for Weight Loss and Prevention of Weight Regain for Adults. Med & Sci in Sports & Ex: Feb, 2009. Vol 41, Issue 2.

Heli

May a lot of people have dream to became pilot heli, but no everyone could reach it. Wanna feel like pilot heli. Its perhaps will help you.




more video

Android App that we should know and use

1. Google Voice

Google Voice is a service that is so useful I consider it one of the top benefits of Android itself, especially since Apple rejected the Google Voice app for the iPhone. It gives you a phone number that can ring to multiple places or devices and it allows you to access all of your voicemail and text messages over the Web. The Android app integrates even deeper. It can make outgoing calls look like they’re coming from your Google Voice number so that you can keep your real mobile number private.

2. Advanced Task Killer

One of the realities of having a multitasking mobile OS in Android is that you have to manage your apps so that they don’t hurt performance or battery life. Advanced Task Killer (or ATK) is my favorite. It even comes with a widget that you can tap once to kill all open apps.

3. Dropbox

Dropbox is a great cloud service that automatically syncs a folder of files between multiple computers (Windows, Mac, or Linux). This app extends Dropbox to Android and interacts with other apps (such as Documents To Go) to open the files.

4. Evernote

Once you get used to typing on a virtual keyboard (and it honestly took me over a year to do it), then these devices are great for note-taking, and Evernote is a great note-taking app. It is similar to Dropbox in that it saves data locally but syncs it across all your machines and devices.

5. DroidAnalytics

For some reason Google doesn’t have an official app (for either Android or iPhone) for Google Analytics. The best one I’ve found on Android is DroidAnalytics. Another good one is mAnalytics.

6. Documents To Go

The free version of Documents To Go offers a great little reader for Word and Excel files. You can upgrade to the full version (for $15) if you want to edit files and add PowerPoint files to the mix. If you do want editing capability, I’d also recommend taking a look at QuickOffice.

7. Amazon Kindle

I never warmed up to the Amazon Kindle e-reader, but I’m a big fan of the Kindle mobile app. Since it was released I’ve read a lot more books simply because my smartphone is always with me and I can pull it and read a few pages anytime I’ve got a couple minutes free.

8. Places Directory

This is an awesome app for finding shops and services near your current location. From restaurants to movie theaters to medical facilities to taxis, this app is very accurate and takes advantage of the business information from Google Local. This app is better than the info you get from a GPS unit (or app) and better than any of the similar apps available on the iPhone.

9. Tripit

I dig Tripit. It is by far the best app I’ve found for keeping track of all my travel itineraries. It runs on some great backend systems. You simply forward your confirmation emails for your flights, hotels, rental cars, and more to Tripit and it automatically organizes them into trips with all your details and confirmation numbers.

10. Seesmic

Twitter is an amazing instant-intelligence engine and it was made for mobile browsing. Although there’s an official Twitter app for Android now, Seesmic is still the best Android Twitter client.

11. FCC Speedtest

I’m obsessed with running speed tests to check my bandwidth in various places, both to see 3G fluctuations and to check the quality of Wi-Fi. There are a number of really good speedtest apps, but my new favorite is the FCC Test app.

12. Astro File Manager

Another one of the great things about Android (if you’re a geek or a tinkerer) is that you have lower-level access to the system itself. Astro is an app that lets you navigate the Android file system.

13. Got To Do

There are plenty of to-do apps to choose from on Android but I prefer Got To Do because of the solid interface and the fact that it can sync with the online service Toodledo.

14. Gist

Many of us have contact lists scattered across various computers, devices, and online services. Gist is a Web service that can bring them together and even pull in stuff from the Web to help you stay up to date with your most important contacts. There’s an Android app as well as an iPhone app.

15. TED Mobile

TED is a fascinating event that features a meeting of the minds of some of society’s most influential thinkers. You’ll definitely disagree with some of them, because there’s a large diversity of opinions, but many talks are worth listening to. What I love is that they’ve taken the videos from their conference and made them freely available on the Web. This app provides a great way to access the videos. I hope more conferences follow TED’s lead on this.

16. Pandora

Pandora is a streaming “radio station” for the Internet age. You simply search by an artist or song and it will create a running playlist based on that one piece of information. It intersperses an occasional ad between songs but the ads tend to be fairly localized and occasionally even useful.

17. Shazam

If you want to impress your friends with a mobile app, show them Shazam. Ever hear a song being played at a store or on the radio and ask yourself, “Oh, what song is that?” That’s where Shazam comes in. Just hit the button and let it listen for 15 seconds, query its database, and then return the name of artist and the song. It has about an 80% success rate.

18. Dial Zero

Are you one of those people who dials a customer service line and just keeps pressing zero until you get to talk to a real person? Then Dial Zero is your new friend. This app provides a directory of a ton of U.S. businesses and gives you numbers to help you get closer to a real person and instructions for which prompts to hit to speak to a human being as quickly as possible.

19. Google Goggles

This is a fun app that is a little but ahead of its time. It does visual searches. You can take pictures of things and then the app tries to tell you what they are. It’s limited in its scope but it is pretty cool, and it’s definitely a peek into the future. One of the coolest features is the ability to take pictures of text in a foreign language and let that app translate for you. In a foreign country, this can help you read street signs and avoid going into the wrong bathroom. :-)

20. Google Sky Map

Ever look up at the night sky and try to tell your kids the name of that constellation you’re pointing at, or try to remember which planet that is in the southern sky? Google SkyMap lets you point your smartphone at it and get the information. This is part of a new breed of apps called “Augmented Reality” apps that layer digital information on top of real world experiences.

21. Tricorder

A lot of geeks I know like to say that our smartphones are becoming more and more like the Tricorders on Star Trek. Well, here’s a fun app that turns your Android device into a virtual Tricorder. It even offers some useful environmental information, including GPS data, wireless data, and ambient sound measurements.

22. FxCamera

Honestly, the camera software on Android is an area where major improvements are needed, but this app is a great example of what’s possible. It has solid camera controls, full customization options, and offers some great effects for photos.

23. Photoshop Mobile

Photoshop is, of course, the best known photo editor in the world and its mobile app doesn’t do anything to hurt that reputation. But while the desktop version is know for having a zillion features, the mobile app is distinguished by its simplicity. It’s the best Android (and iPhone) photo editing app for simple crops, brightness adjustments, and sharpens, for example.

24. Bump

Bump is a fun (and useful) idea for sharing info between two phones using the accelerometer, and it works across Android and iPhone. You can use it to share contact info (yours and others), photos, and apps. You both simply open the Bump app, choose what you to share, and then hold the phones in your hands and bump your hands together.

25. Barcode Scanner

This app turns the Android camera into a barcode scanner. You simply scan a product’s UPC code and let the app go to work to find it in Google Product Search or a search on the open Web. You’ll be amazed at how fast it works. This is great for when you’re shopping retail and you want to check the price of a product online before buying to make sure you’re paying a fair price.

Android Got Accident (First AID)

First Aid is designed to help you follow the right procedures in a stressful situation or support other people by giving them instructions. It is based on illustrations, videos and short texts that show you how to take the necessary action step by step and in the right order. Features: emergency call, SMS, My kit.

Price: Free

AndroidTapp.com Android App Review:

Pros & Cons:

Pros

• Test your knowledge of basic to intermediate first aid
• Learn how-to solutions when situations occur
• View illustrated tips on how to administer first aid techniques
• Watch video tutorials for some situations
• Keep a log of emergency numbers

Cons

• No section for kids or infants
• Few spelling errors

Features:

First Aid Android App gives you many tips on what to do in various situations where first aid needs to be implied. When you choose a situation in the tips category, the next page illustrates how to perform the recommended procedure. You can even see videos on YouTube showing tutorial of some first aid procedures. First aid also has a category that tells you if something is a first aid related Myth or fact. If it a myth, first aid gives you the corrected solution.

There is also a section that gives you Tests on first aid solutions and procedures. The last category is Kit. This is the area where it shows you options to include in building your own physical first aid mobile kit. The last option is the “Call” option. In this section you can store emergency numbers that should be called for any emergency that might come up.

First Aid Splash Screen

First Aid Call Home Screen

First Aid Myths

First Aid Tests and Quizes

First Aid Kit

First Aid Treatment Categories

First Aid Treatment Advice

First Aid Treatment Videos on YouTube

Usefulness:

This application is very useful, in today’s society understanding and staying aware of what to do when you aren’t around a clinic or if you’re on the road travelling in rural areas with no hospital in sight in the case of an emergency, this app can be finitely valuable!

Ease of Use:

The app is pretty straight-forward. Once opened all options are divided into 5 sections, Call to access emergency. The next section is Tips; this section is followed by Myths of first aid response. The last two sections are Test and Kit.

Frequently Used:

Whenever an emergency appears, or if you’re just curious of what to do in different situations. Or if you just want to refresh you first aid knowledge.

Interface:

The interface is very simple. All your main categories are at the top of the screen in a row. Poke around to discover first aid tips.