Anyone have experience with running a wiki? Any recommendations for software? My criteria are pretty simple: Ease of use and installation; and some sort of version control, where I (and hopefully a few other users, if it supports logins) can have administrative privileges, able to lock pages against trolls and roll back malicious changes. E-mailed notification of changes would be a nice perk but not at all necessary.
Current NaNoWriMo word count: 30,849
Current NaNoWriMo rank (based on word count): 1,411 out of 41,601