Snap Groups – Create Private Message Board Groups

Snap Groups is new service that allows anyone to create private or public message groups. In Snap Groups you can create your own group in which to share short messages with other group members. Of most value to educators is that Snap Groups can be made completely private and hidden from public view. When you create a group you’re given the option to make your group public or private, the option to moderate messages, restrict who can join your group, and restrict who can see your group and its messages.

http://www.snapgroups.com/