Google's pretty good wiki

I've been casting about for a free, easy-to-use wiki program for my students in Reinventing the News to play with this fall. I didn't want to use anything I would have to install at the server level, because life is too short to spend it learning that sort of thing.

Wouldn't you know it, but Google has a nice solution called Sites. Ridiculously simple, and more features than we'll probably use. Now I just need the right class project. I'm thinking of a compendium for internal newsroom use rather than something that could be edited by the public (although I'm open to that, too).

Any thoughts?

But wait: Ari Herzog's "U.S. Congress on Twitter," using PBwiki, looks awfully nice.