Keen Talks is similar to TED , it provides some awesome and engaging talks, lectures, and presentations.
Due.IM is a simple website that lets users send password-protected messages that are instantly deleted after they are read.
3- 3DPageFlip PDF to HTML
This is a desktop application for Windows. It converts PDF files to HTML files, this is mainly useful if you want to convert a large PDF file to embed in your website.
This is an awesome Twitter tool that allows users to find out the most trended topics on their Twitter news feed.
Linxy helps you quickly obtain information when reading books or magazines. Just point it on a text and it instantly obtain word explanations or definitions.
6- Jeopardy Labs
JeopardyLabs lets you create your own games. You can design your customized template without PowerPoint. The games you make can be palyed online and from anywhere in the world.
FilmStory is a great free website that helps users learn about the past through films. You can just select the country you want and FilmStory instantly provides you with a bunch of films on its historical events.
Quilt is a scrapbook that you can use to document events or anything you want. You can invite friends to help you and after you are done you can share your work online
Textivate allows you to automatically generate a range of interactive browser-based activities based on any text of up to 500 words.
Mobento offers you a more effecient way to enjoy videos. It allows you to search inside the video and search for words that were spoken and many more.