I've found it frustrating to get heard on last.fm. Our music is all freely download-able (http://www.last.fm/music/The+Willing+Mind and http://www.last.fm/music/Brian+Silberbauer), but we're just not getting hits..
Surely there should be a good way for Creative Commons licensed music to be promoted as we're not making money out of the downloading, its difficult to justify buying into the last.fm promotions.
I just think there is something missing out there, I make music, I'm not a marketer.
Or maybe our music just sucks??