Oh gosh.. Ive read so many Yaoi.. I cant even remember their name ;__; Most of them are either one-shots or just short stories though D: So ehm these are some:
Let Dai, Junjou Romantica, Doushitemo Furetakunai (Actually one of my favourite.. <3), Sex Pistols, Love Neko, TOtally Captivated
I havent read any yaoi because I had found a new love <3 which is Shounen ai (like Seven Days and the other manga by the same mangaka)
Lately, I only read Yaoi Doujinshi (mostly SasuNaruSasu doujins by Emirankai <3)