  If you're not familiar with PitchForkMedia.com, then do take a look; it provides just about the best resource of album reviews on the web, provided you're interested in music of a vaguely alternative rock / underground bent. Actually, they do a good line in underground hip hop stuff too. urlLink Pitchfork Media And once you have looked at it, then take a look at this. Looks the same, but subtly, subtly different: urlLink RichDork Media and Music Reviews and General Pretentiousness 
