I usually get a bunch of cool stuff from the Quietus end-of-year list. It's a lot more varied than the lists of most other publications.
Besides that, mostly Rateyourmusic for sure, especially the "Let's all find the next gem of [current year]" forum threads. I also used to visit /mu/ for recommendations back in the day, but the culture there made me, uhh, reconsider my life choices.