Throwdown - House and reggae on vinyl and CD. Includes MP3 samples, special orders, live and archived DJ sets, reviews, and San Francisco party listings. - http://www.throwdownfightgear.com
DJ Smiler - Download or buy hard house tunes. - http://www.peoplesound.com/artist/djsmiler
Chemical Records - UK garage, drum and bass, hard house, tech trance, trance, and progressive house. Audio samples and charts. - http://www.chemical-records.co.uk/