Group items tagged

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.

Sign up for the free features for teachers. You need to get approval from Diigo but it adds functionality.

An amazing yet simple site for group project management. Share the responsibilities, categorize and make notes, to do's and vote on good ideas. Organize and assign tasks including uploading documents and linking to videos.

Allows a collaborative "wall" with digital stickies.  Like wallwisher.

This tool lets you add simple comments to a video, helping to guide students through flipped classroom experiences. It also works with Evernote.