Twiddla is a free collaboration tool where you set up meetings using an online whiteboard interface. Twiddla meetings allow users to interact in real time
"There are many great websites that provide opportunities for students to develop language skills, tell stories, and share back their knowledge in fun, creative, and meaningful ways each using a computer. There are also terrific websites and portals which have links to excellent online interactives which can be used in the classroom with an interactive whiteboard."
Multifunctional web service that enables you to do almost anything with RSS feeds. There are 11 different feed tools you can use. Combine multiple RSS feeds, convert feeds into PDF, convert feeds to speech, create a mobile site from any feed, etc