I like drone, but rather than making a new thread I'll post here. I suppose ambient and drone are similar enough, although I haven't been crazy for much of the music I listened to from here. I like Stars of the Lid a bit, but pretty much just as background music. I prefer drone music that sort of takes from other genres. Such as:
Bohren & der Club of Gore - jazz / drone
Sunn - black metal / drone
Earth - post-rock (?) / drone
Burial - trip-hop / drone
Anyone have more suggestions like that?