I recently found some Twitter pages, for those of you on Twitter, that update followers on events in Berlin. The first is all in English and promises to update at least two hours before any event is scheduled to happen. They are:

http://twitter.com/BLN_unlike

http://twitter.com/berlintweets

http://twitter.com/playberlin

I know there are also some specifically for the club scene... if there are still some people researching the Berlin club world.