ChartLet
Chartlet is a Firefox extension that periodically checks places on the Web, extract and stores numerical values. On demand, you can display the history of those values in nice charts Learn More...Converter
Contextual unit, timezone, and currency converter on any web site; custom conversions for offline text also supported. Learn More....Hyperwords
With Hyperwords you can select any word on any web page and choose from powerful commands, including: • Reference • Search • Translation • Conversion • Email • Twitter • Facebook • Tag • Blog • & More Learn More....Merriam-Webster
Either it doesn't work with Flock or I'm missing something. Nothing on right click and see no option for toolbar etc. In fact, although attempting to re-install it results in a pop-up saying it's already there, I cannot see it listed in Flock's add-on extensions or plug-ins at all! Learn More....gTranslate
With gTranslate you can translate any text in a webpage just by selecting and right-clicking over it. The extension uses the Google translation services to translate the text. Learn More....Answers
1-Click Answers TM will save you even more time with AnswerTips that instantly deliver the information you are looking for. Just point at any word, hold the Alt key (Ctrl in Linux) and click. Upon letting go, an AnswerTip in the form of a pop-up... Learn More....Wired-Marker
Wired-Marker(http://www.wired-marker.org/en/) is a permanent (indelible) highlighter that you use on Web pages. The highlighter, which comes in various colors and styles, is a kind of electronic bookmark that serves as a guide when you revisit a Web page. Learn More....Notefish
Notefish makes internet research simple. Notefish is the easiest way to save, organize and share snippets of internet web pages that you find. You can customize the resulting notes by moving them around, changing their colors, organizing them into... Learn More....Clipmarks
Clipmarks lets you clip and share specific parts of articles, blog posts or anything else you read on the web. With our newly integrated Amplify service, you can post clips directly to Twitter or Facebook - or share them on clipmarks.com and more. Learn More....MyStickies
MyStickies allows you to place sticky notes all over the web and organize them with tags. You can view, sort and edit your notes with our free web based tool at... Learn More....ScrapBook
Helps you to save Web pages and organize the collection. Learn More....
Reframe It
Comment anywhere on the web without the permission of a site. Reframe It lets you comment next to the text or images of any website. With it you can highlight comment and share you thoughts in context. Say what you want where you want. reframeit.com Learn More....Read It Later
Read It Later allows you to save pages of interest to read later. It eliminates cluttering of bookmarks with sites that are merely of a one-time interest. Learn More....Related Topics : Free Useful Tools and API's : URL shortening service - Free : Web Development Tools : Free Twitter Tools : Tools For iPhone and Mobile Phones - Free : Social Networking Tools
