MTV has redeemed itself from more than a decade of being the worst thing ever. They're releasing their entire archive of music videos for free online at http://mtvmusic.com. No ads in the videos themselves, no required registration, and they have a complete API for developers to embed and interact with the videos on their own websites (I have every intention of developing a playlist app since I often use music videos as a means to stream music). I never thought I'd say it, but MTV done good.
To sum it up, it's very user-friendly, browser-friendly, lacking commercials, fast loading, extensive, clean, doesn't try to recommend me irrelevant music, and the design doesn't hurt my eyes if I stare at it too long.