This is part of a series of reviews of websites, platforms, and social media sites. Some are useful for teachers in a SMART classroom (with a teacher-station computer, internet connection, and projector). Others lend themselves more to a lab where each student has her own computer. Hopefully these can help us communicate with our students, present information effectively, and encourage collaboration, feedback, and active participation. See our previous review of Wordpress and Facebook.
Here's a review of the very first content management platform I ever used: PB Works.