Wikis
PB Works (formerly PB Wiki)
Easy-to-use wiki page that students can edit.
Wikispaces
Wet Paint
Blogs
Edublogs
21 Classrooms
Blogger
Bravenet
WordPress
Some other cool collaboration tools
Skype
Free videoconferencing tool.
VoiceThread
Not just for digital stories! This can be used as a class collaboration tool as well.
ShowDocument
Allows several people to view and edit a document simultaneously.
Click here to join my session: ShowDocument Session
Click here to join my session: ShowDocument Session
