Forum One has been around for years in the community space and now they have come out with project spaces, a web based collaboration software.

you can get a 30 day trial to check it out but the feature list includes what you’d expect – calendar, document sharing, task list, email discussion lists, message boards. maybe the feature list isn’t complete but i think there’s a fair amount missing for a collaborative software – particularly one from a company that knows about getting people together online.