Last.fm, Rate Your Music, Drowned In Sound, Stereogum, Uncut, MOJO, various music blogs and music forums.
Certainly not Q, NME and the Day & Section of the Indo.
Admittingly I don't discover as much music from this place as I'd like to. I very rarely click on a Youtube video unless the person who posted it included a description of the song that sparks my interest. Also some albums reviews would be good