Yeah, that album is out of this world.
I feel his music is brilliant yet impossible to understand, at least in the sense as to how he would go about making it.
as for source for trance/EDM music
http://www.residentadvisor.net/ (Their podcasts are pretty good. Same with factmag mentioned above)
Frank Ocean's popularity might be owed to a marginal gentrification of the genre as a whole. Still, I think he's alright.