Pride High – Gorgeous, gorgeous comic
So Super Duper http://www.sosuperduper.com/
http://www.agentwithstyle.com – These guys carry books based on tv shows and movies, and many of them contain “slash” (homoerotic stories, both m/m and f/f). If you’re looking for great gay characters, go check ’em out!
Spandex 
François Peneaud’s The Gay Comics List (gaycomiclist.free.fr) is a great English-language resource for LGBT comics.