I'm going to quote pretty much wholesale from Gizmodo:
Gizmodo is declaring the month of March Boycott the RIAA month. We want to get the word out to as many people as humanly possible that we can all send a message by refusing to buy any album put out by an RIAA label. Am I saying you should start pirating music? Not at all. You can continue to support the artists you enjoy and respect in a number of ways.
Firstly, I encourage everyone to purchase music from unsigned bands and bands on independent record labels. There are tons of great artists out there, many of which you're probably already a fan of, that have nothing to do with the RIAA. Buy their records at eMusic, an online store that sells independent tunes in beautiful, DRM-free MP3 format.
Secondly, you can still support RIAA-signed bands without buying their music. Go see them live and buy their merchandise; they get a hell of a lot more money from that then they do from album sales. And hey, you could benefit from getting out more, couldn't you?
So direct your music money elsewhere for March. Use it as a chance to expand your horizons. The current system is pretty god awful.