Education that includes at least some online work is more effective than classroom-only teaching, according to a major research review done for the Department of Education.
Mashable write up of our Twitter article: Alan Cann, Jo Badge, Stuart Johnson, Alex Moseley. Twittering the student experience. ALT-N, Vol. 17, October 2009. http://newsletter.alt.ac.uk/xrctg5ovlfkimsphpsy77s
TinyChat is about as simple as a build your own web chat page could be. You just click a button to create a room and then enter the room or copy the link to share with others.
Clipperz is a free and anonymous online password manager. Local encryption within the browser guarantees that no one except you can read your data. Nothing to install.
SceneMaker lets you to select a portion of a video off of YouTube, etc and share just that portion of the video without having to show the entire original video.