Noisetrade has plenty of free or pay-whatcha-want true indie artists that are doing it all themselves. Like these wiley misfits that moved from NC to NYC. Their whole first rekkid is up for grabs.
(yes, it is my band)
Also most artists will give you free download codes for their bandcamp albums for a smile or a half eaten chicken ceasar wrap.
But these bands are always trying to post these links in places like boing boing when nobody was really looking for that. So there’s a downside. 
