PageRank is a link analysis algorithm used by the Google Internet search engine that assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of “measuring” its relative importance within the set. The algorithm may be applied to any collection of entities with reciprocal quotations and references. The numerical weight that it assigns to any given element E is also called the PageRank of E and denoted by PR(E).

The name “PageRank” is a trademark of Google, and the PageRank process has been patented (U.S. Patent 6,285,999). However, the patent is assigned to Stanford University and not to Google. Google has exclusive license rights on the patent from Stanford University. The university received 1.8 million shares of Google in exchange for use of the patent; the shares were sold in 2005 for $336 million.

Page Rank add-ons for Chrome shows the Google PageRank for the current website.

01. Install Google Chrome from http://www.google.com/chrome.
02. Download the Chrome Channel Switcher.
03. Launch the channel switcher, and subscribe to the dev channel. See below:

04. Download Page Rank addons for Chrome.
05. Locate a Chrome shortcut, right click on it, and choose “Properties” from the contextual menu.
06. Locate the “Target” item in the Properties dialog
07. Attach “–enable-extensions” to the end of the string in the “Target” item. E.g. “C:\Documents and Settings\username\Local Settings\Application Data\Google\Chrome\Application\chrome.exe” –enable-extensions
08. Copy pagerank.crx into drive C:
09. Open Chrome with “file:///C:/pagerank.crx”
10. You will be prompted whether to install it. Say “Yes, I Do”, or click “OK”:
11. Restart Google Chrome
12. Done! You should be able to see Page Rank display on left bottom corner for any particular website.

(A)IE7Pro (only IE7) includes Tabbed Browsing Management, Spell Check, Inline Search, Super Drag Drop, Crash Recovery, Proxy Switcher, Mouse Gesture, Tab History Browser, Web Accelerator, User Agent Switcher, Webpage Capturer, AD Blocker, Flash Block, Greasemonkey like User Scripts platform, User Plug-ins and many more power packed features. You can customize not just Internet Explorer, but even your favorite website according to your need and taste using IE7Pro.

(B)LeechVideo download favorite videos from popular video sharing websites (i.e. Youtube, Google Video, DailyMotion, iFilm, Metacafe, etc.).

(C)Inline Search is an extremely useful free add-on for Internet Explorer that mimics Firefox‘s search behavior. It turns searching in a web page into a non modal research experience coupled with a find as you type facility. It integrates flawlessly into IE (version 5.5 or above), giving it that little extra that makes you a lot more efficient when you are looking for a specific piece of information.

(D)ShareThis lets you instantly access all of your profiles, blogs, friends, and contacts for easy sharing and updating. We think users should be in control of their online world.

(E)The Zamzar web browser button is a link you can add to your web browser’s “Bookmarks Toolbar”. You can use it to convert files from all your favourite websites at the click of a button.

(F)Feeds Plus is an Internet Explorer 7 add-on that makes your feed reading experience easy and efficient. You can read your feeds in a combined view (aggregate feeds) and get pop-up notifications when there are new items to read.

(G)ieSpell is a free Internet Explorer browser extension that spell checks text input boxes on a webpage. It should come in particularly handy for users who do a lot of web-based text entry (e.g. web mails, forums, blogs, diaries). Even if your web application already includes spell checking functionality, you might still want to install this utility because it is definitely much faster than a server-side solution. Plus you get to store and use your personal word list across all your applications, instead of maintaining separate ones on each application.

(H)McAfee Site Advisor (only IE 5.5 – 6.0) – slim and easy-to-use security addon, features include:

• Protects you from adware, spyware, spam, viruses and online scams.
• Advises you about the safety of sites using a colored button in your browser toolbar.
• Enhances your online search by placing safety ratings next to search results.
• Warns you about dangerous sites and search results with clear messages.
• Provides you with all the details about a site’s safety rating on request.
• Updates automatically to protect against new threats

(I)IeSessions - lets you save the current state of all open windows/tabs, store it to a file and restore it anytime afterwards. Especially useful if you have to switch between multiple computers (i.e. office, home) during the day.

(J)Videoronk (only IE 7) – add ‘Videoronk’ to your search toolbar and you’ll be able to search on top 8 video sharing websites simultaneously (Youtube, Google Video, Vimeo, Metacafe, iFilm, Blip.tv, Revver, DailyMotion and Myspace Video).

(K)Ipipi SMS IE is a handy addition to your Internet Explorer’s tool bar that allows you to send SMS messages to virtually anyone, anywhere in the World, directly from your favorite Internet browser. It also allows you to receive replies from your friends and colleagues. Finally, it extends Explorer’s right click menu list and allows you to select any text or picture that you find on the Internet and send it to any mobile phone on the Planet. After downloading the toolbar and running the installation, you will need to open an ipipi account and then you’ll be sending text messages immediately.

(L)Searchons Addon is the next big thing in term of quality search results. Using the Searchons Addon will allow you to search the Web using searchons and share your findings with the community. This version is the first release on CNET Download.com.

(M)Video Download – Download videos from Youtube, Google Video, Pornotube, Grinvi, and many other sites with simply one click. This simple add-on adds a Download Video link to the right click menu panel. Just click on it and a new window will be displayed with the download link. You will be able to download videos to your computer and watch them as many times as you want.

(N)AutoRefresher For IE automatically refreshes websites for you. You can set it to refresh your pages at custom intervals or any predefined ones. Each browser window has its own refresh control. Istaller/uninstaller are included with this package. Great for surfing Web pages that are updated often.

(O)IECount limits number of IE at desktop, stops pop-ups, starts clipboard URL or e-mail by double click in tray, quickly sets favorite Internet browser’s properties, performs search in 10 best engines (Google, Yahoo), changes proxy settings with given list and time interval. IECount is a set of useful ie tips and tricks to simplify your I1nternet surfing.Version 3.2 improves interface and enhances proxy management.

(P)YouTube Downloader software that allows you to download videos from YouTube and many others and convert them to other video formats. The program is easy to use, just specify the URL for the video you want to download and click the Ok! It also allows you to convert downloaded videos for iPod, iPhone, PSP, Cell Phone, Windows Media, XVid and MP3. Allows you to access YouTube videos for which you need to be 18+ years of age. Now, plays videos downloaded.Version 2.1.4 may include unspecified updates, enhancements, or bug fixes.

(Q)Mapper is an addon for Internet Explorer 7 which enhances your online map-viewing experience. It hooks into IE as a toolbar button, exposing several features. Switching of map types The first feature is switching of map image source. Basically, when you’re viewing a virtual earth map, it allows you to change its imagery to Google Maps imagery and vice versa. Extending the IE7 RSS reader. The second feature extends the RSS reader built in IE7 with GeoRSS support. It can display GeoRSS on a map, or it can even try to show an ordinary feed on a map. My Collections, when you’re viewing GeoRSS in the Mapper-viewer you can choose to save the feed to the My Collections list. This allows you to show different sources simultaneously. Next to adding feeds to My Collections you can also add data from Web sites using either the Virtual Earth SDK or Google Maps API. Version 0.11 may include unspecified updates, enhancements, or bug fixes.

Source: Top 11 must-have Internet Explorer Addons and Cool Internet Explorer Addon’s