After a couple of weeks off, I'm back to plague the 'Circle with my free music propaganda. And just in time for you to put it on a sweet Battlestar Galactica Zune.

• Indie Rock Cafe loves them some Earth Day... and what better way than to put together a 12-track compilation including artists such as Deastro, Grandaddy, Fleet Foxes, Love and Rockets, and more.
• Obscure Music Blog has 3 tracks from Neon Indian.
• Bmbx has a mixtape featuring Fall Out Boy, the Killers, Hello Goodbye, and more.
• Stereogum has the new Sonic Youth track, "Sacred Trickster." Run, don't walk to it!
• Amazon.com is offering a free Sub Pop sampler, with tracks from Flight of the Conchords, Handsome Furs, Vaselines, and more.
• Ever lovable Fluxblog has free tracks from Still Flyin' and Feadz (featuring MC Wesley).