Archive A site dedicated to fanfiction about the series Gundam Wing . This webring has a list of sites that carry stories of a sexual nature. Very few sites are yaoi , but there are some there. I can't tell you much about it. This site is dedicated to male-only fiction, gay stories, and tales of bishounen .
Some stories have a sexual content, though many are of a romantic nature.
The archive for all postings, including stories, that appear on the Crimson Ink Mailing List. From here you can subscribe to the Yaoi Mailing List and find information, stories, and discussions about various yaoi anime. Hopefully these are a good starting point for you to look for stories. I'll contiue to update the links as I get more information.