There's nothing I love more than finding a great site where I can download free music, learn about new artists and check out different musical genres. While sites like iTunes still dominate the market in terms of purchasing music there are plenty of places you can download music legally. My most recent finds are MP3blogs.org and Purevolume.com, which are both clean, easy-to-use sites that aren't cluttered with ads.
MP3blogs.org: This site provides an hourly aggregation of the free and legal MP3 downloading blogs of over 100 different bloggers. The selection spans hundreds of unique music genres and tastes from the obscure to the mainstream.
Purevolume.com: Is a Boston-based website that focuses on providing music, online entertainment and social networking. It offers more than 100,000 free songs for download, and a great selection of up-and-coming artists.