Websites that list local events

If a person is interested in finding out about various local and nearby events (speeches, concerts, comedies, rallies, book signings, etc) aside from and, are there other sites that are good for that kind of thing? I haven’t found many sites that have a central list of all the events, info like that is usually spread by word of mouth or by small ad campaigns (flyers, etc).

There needs to be a site like facebook devoted to that.

Does your city have an alternative weekly? Ours, the Tucson Weekly, has a whole section devoted to the events of the week around town, and can be read online for free.