Dear God, I look for new music almost daily. I'd say 85% of the music in my library is stuff I've discovered on either this site or Last.fm. 10% I found via YouTube or iTunes, and the remaining 5% from the radio. Favourite bands I learned about in the past year:
BOY - (RIYL: Feist, Cults, Destry)
Brave New Storm - (RIYL: Fleet Foxes, Daughter, Sophie Hunger)
Clearview - (RIYL: Balance & Composure/ Basement/
Deja Entendu)
Everything And Between - (sad mid-tempo shit)
Grimes - (electronic w/ avant-garde influences)
Now, Now - (RIYL: Tegan & Sara, An Horse, Lemuria)
Poliça - (electronic/ r & b)
Shy Technology - (RIYL: We Were Promised Jetpacks, U2)
Tiger! Tiger! (pop-punk)
I came to this site looking for new punk and post-hardcore, but since then, I definitely listen to a lot more indie rock w/ twinkling guitars and electronic music.