Friends, sports (particularly football), music, having fun in life in general basically.
I joined to keep up to date with cool bands and a few friends. I also joined because my two lovely friends, Marieke and Yessi, asked me too.
Iko - Prom song
Oasis, Queen, Keane, Beatles, Coldplay, Snow Patrol, etc... and brit pop in general, but also electro such as Röyksopp or Air, french indie like Tiersen, Fersen, Dionysos, etc...
I'm quite ecclectic in music anyway, and having a look at the groups in my friends list should give you an idea of my tastes pretty much.
Star Wars and George Lucas in general : THX 1138, Indiana Jones, etc... Pretty much any Tim Burton and Jean-Pierre Jeunet too.
Football and sports, but also lots of tv series. Right now I'm much into Californication and How I met your mother, along with Doctor Who and others.
I read less than I used to, though my small book-case keeps being more stuff even though there aren't any room left. I recently read Ernesto "Che" Guevara roadbook "Noticias de viaje", that was very intersting but qui hard to read. Otherwise some of my favourite authors are Dahl, Tolkien, Christie, Simmons, etc...