For additional information about what's currently going on or for help getting acclimated to Berlin, the Tourismus Marketing GmbH (www.btm.de) is a great place to start. Their multilingual staff can help you out with places to go and things to see; just drop in to one of their Berlin infostores:

Berlin Hauptbahnhof
ground floor / entrance Europa Platz
030 / 25 00 25
Daily 8am–10pm

BERLIN Pavilion at the Reichstag
Scheidemannstraße
Daily 10am-6pm

ALEXA Shopping Center
near Alexanderplatz, Grunerstraße 20
Groundfloor
Mon-Sat 10am-10pm, Sun 11am-4pm