I think this is a great idea, not so much as an anti-RIAA protest movement, but as a bunch of good ideas for supporting artists who are trying to work outside of the record industry. If you go to a record store this month, look for the album by an independent artist on an independent label.
Putting Our Money Where Our Mouths Are: Boycott the RIAA in March - 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.