Like most web developers or SEO professionals, I use a wide range of tools to do the job. I use a combination of desktop and web applications, some purchased and some are free. Everyone I know has downloaded a free copy of Mozilla Firefox, but few realize that by installing some extensions of the 1,500 free, they may require in most other programs they currently use to eliminate. Here are my 13 favorite extensions for web professionals (in no particular order):

HTML Validator (http://users.skynet.be/mgueury/mozilla/) – validate web pages with W3C HTML standards with a simple green check mark in the corner of the page if the page is validated, a check or red it, and a yellow exclamation point as warnings. It also includes an improved presentation of the code that you can see where errors in the code.

FireFTP (https: / / addons.mozilla.org/firefox/684 /) – free, secure and multi-platform FTP client that is easy and intuitive FTP server access offers. This removes a piece of software for those of you who use a separate FTP program.

Professor X (https: / / addons.mozilla.org/firefox/2823 /) – Ask your header information without source code. The “sliding” down and Professor X shows you the contents of the main page of his element, including Meta, Script and content style.

WHOIS Nickel (https: / / addons.mozilla.org/firefox/2646 /)-Check the WHOIS information of a page by clicking the right button of the upper browser.

IE Tab (http://ietab.mozdev.org) – sick of change between Internet Explorer and Firefox to test a web page that you develop? With IE Tab you use Internet Explorer in a Firefox tab!

Firebug (https: / / addons.mozilla.org/firefox/1843 /) – an advanced debugger console allows you to monitor your JavaScript, CSS, HTML and Ajax.

Code Tech (https: / / addons.mozilla.org/firefox/1002 /) – Web page editor that has the feel of Dreamweaver. A great extension for anyone doing Web design that will not pay a few hundred dollars for Dreamweaver.

Server Switcher (https: / / addons.mozilla.org/firefox/2409 /) – easily between the sites of your development and live servers by clicking the switch server.

Firefox SEO (http://tools.seobook.com/firefox/seo-for-firefox.html) – draws a useful market research data right into Google and Yahoo search results S, including Google PR , age, links, Alexa rank, WHOIS and more. He also added some links to the top of the search, including Google Trends, Google Traffic Estimator, and a submission tool for Overture.

Yet Another Window Resizer (https: / / addons.mozilla.org/firefox/2498 /) – you can resize the browser window to default screen resolutions.

AdSense (https: / / addons.mozilla.org/firefox/2132 /) – an example of the AdSense ads that appear on this page. This is extremely useful if you plan to put AdSense on a page and do not want to go through the hassle of signing up for an account and introduce the ads just to see what kind of ads.

screenshot (https: / / addons.mozilla.org/firefox/1146 /) – Takes a screenshot of the web page and save it as an image file. This saves much time compared with the method I used to use – take a screenshot and open Adobe Photoshop to crop the image.

Server Spy (https: / / addons.mozilla.org/firefox/2036 /) – indicates what type of HTTP server (Apache, IIS, etc.) runs on the visited site on the lower right side of the browser.

SEO is a link building company. As the name denotes, link building requires others to build that company. This is an integration of sites with common factors among them and thus profiting from that connection. For example, I am looking for a certain restaurant’s location in the search engine. I may type the restaurant’s name and the search engine will show the map of the most “popular” site. When I explore this site, it would connect me to other sites like the restaurant’s company profile and its affiliates.

This would be difficult to do without the search engine optimization firm. This is in-charge in monitoring the restaurant’s site and linking it to different sites related to it. This is the marketing arm of the internet. It markets different sites where webpage makers can profit from the things that they do. They are composed of smart marketers who sell the brands and make it profitable. Where others earn from the different ads in their webpage, others do so for its article or directories content. Internet is a booming business. While others earn by posting products and selling them on-line, there are people behind them earning from them too. Let me take a look at that most coveted post, being number one. Being there means you are the most sought-after, the most popular, the most reliable product, and you are ahead of your competitors. While it may not be true in essence, it can be true in form. Without the firm to back you up, success will never come knocking at your door.