Jiwa

Even though its layout isn't the sexiest thing ever, I was quiet surprised by how much I actually found on Jiwa.

The site is a lot similar to Deezer: a search engine helping you finding the bands/songs you'd like to listen to, the songs being displayed as a list, with the possibility to add songs to your own playlist/library.
Its default language might be French but it is also available in English.

All in all a more than decent site for streaming music. Probably in my top 5 right now.