There's a whoollee bunch of SXSW content floating around there on the internet. Google, google, and more google, because it's one of the best times of year for us music fiends. Here are some links to get you started:

Wednesday, Thursday, Friday, Saturday in photos (via Stereogum)
Guide to Pitchfork's 2009 SXSW Coverage
Gorilla vs. Bear's photo recap
I Am Fuel, You Are Friends' recap + photos
And again, Google.

The Dirty Projectors (on tour) at SXSW 2009 (via Stereogum):
"Stillness Is The Move" (SXSW 3/19/09) (MP3)
"Remade Horizon" (SXSW 3/19/09) (MP3)
Stream their entire Thursday set.