Social networking for teachers interested in using Web 2.0 technologies in their classrooms.
Make your own social networking group, allows for a "private" option making it useful for creating a community around the students (and possibly their families). Blogs for each user, photos, discussion forums, and events calendar. Pretty cool.
Allows for collaboration on one word document, password protected. Great for shared writing projects.
Really, really, really easy way to create a quick website. Definitely helpful if you're crunched for time.
Add photos, notes, videos, and more to a map. Good for documenting local history projects, field trips, walking tours...