Google Groups
Google Groups
features and advantages
Collaboration
Collaboration
Allow group to reserve rooms (does require that the room is set up as a Google Resource)
Security
restrict who can post to a Google group
Anyone on the web (no restriction, default)
Anyone in the organization (meaning anyone with the same email suffix as the group i.e. @eng.ucsd.edu)
Group members (only people in the group can send to the group)
Group managers (only managers of the group can send to the group)
Membership
manual groups, self-management
Note that OEC can also update group membership based on a list that you provide - this can be useful especially if you have a lot of changes to make