This is Berlin's monthly English-language city magazine. For two euros you get a decent, funnily written read on politics, culture, etc in Berlin. Handy classified section. Up-to-date film listings on their website.
Available at newsagents, or online at www.exberliner.com
If you can read any amount of German, avoid the tourist-traps as listed in the Exberliner and find more interesting sides to the city by using "Zitty" or "tip".
Looking at Klamotte's other listings, I can't help but conclude that perhaps he or she has a vested commercial interest: The ExBerliner, Room with a Loo (credo: "give us your money, we'll sublet your flat to somebody and take their money too") and - I might be wrong on this last one - are all run by one and the same company (Iomauna Media).
As a recent expat, I read Exberliner on and off, even though I'm a 'respectable', 'normal' person with a family and on the wrong side of 40. Whatever the subject, the articles are good and my German is not yet fluent enough to enjoy German publications.