The Live Music Archive currently contains nearly 40,000 recordings from over 2,000 performers. Some of my favorites: Mike Doughty, The Weepies, Andrew Bird, The Decemberists. Also check out the overwhelming full list of bands. (Tip: check the FAQ for info on how to deal with lossless file formats like FLAC and SHN that youÃ¢â‚¬â„¢ll see in the archive.)
You may need to spend some time getting set up for Flac/SHN if you don’t download a lot of music online, but it well worth it to get the higher quality recordings.