It's a great idea, though – I wish I had started this years back! Thanks to amerpie for getting me started!
I think I've managed fairly OK, with a combination of Last.fm stats, and my own recollection of albums / songs that I have added to my collection during the last year. Of course, there are also some old songs, that would show up on any list I'd compile :)
Anne Feeney – War on the Workers
This wonderful song is from the album “Dump the Bosses off your back”. It is, along with Union Maid - from the same album - by far my favourite track of the year. I got the album from CD Baby, after hearing “Wotw” on the Thom Hartmann show.
Uncle Earl – Streak O' Lean, Streak O' Fat
From the album Waterloo, Tennessee (from CD Baby). One of the members of this group, Abigail Washburn, was recommended to me on Last.fm.