Recommend a wiki for settings/campaigns

[Delvidian]

We use a combination of a Facebook Group and Google Docs to manage our Team Weird gaming group. The FB Group is good for scheduling games (via Events), posting session notes, knocking out a quick player survey and storing short campaign documents (like player XP files, character creation guidelines, etc.). We then use Google Docs for character sheets and more involved/collaborative documents. It is a clean, free and easily accessible system for the basics of running a live group.