Yaoi and Cels... and more recently Sketches ^_^;; I collect a lot of series that are more on the Shonen-ai side, but have been trying to find the more risque series although this seems to be harder :(

You can find me haunting Rubberslug.com and the http://www.anime-beta.com/ - Cel collectors forum mostly, and occasionally lurking on June's Facebook page ^_^;;