Use this free, simple online tool to list your to do list but allows a simple method for prioritizing that list. Great for students with trouble organizing or with learning disabiliities like ADD
A great and simple way to start developing an online portfolio with this free tool. Add youtube and vimeo vids, upload files, Google Docs, Blogger and more. Even guides you through with questions. Share or keep private.
This is a site that hosts video (Up to 5GB for a free teacher account) but lets you decide who can see it and who can add to it. It's a better managed Youtube alternative.
Use your iPad to create a story with animated pre-drawn people and backdrops. You can add emotions and even record voice. There are many options for sharing.
My preferred means of collecting and sharing links.
Fully integrates with Delicious -- which had been at the top of my list until their new stacking system which I find . . . well . . . gross.
LOADS of other functionality around groups, discussions, annotations, note taking, sharing -- really well designed and gentle learning curve.