For whatever reason folks who are into shemales have a couple of "likes" that don't into the general categories used for men, women, straight, gay and lesbian, and nobody on the internet seems to pay any attention to it so if you did it I think that you'd get a huge uptick in traffic when the search engines picked up on the new pattern or trend.

Not all, but most shemales who like to take pictures and their "fans" like shemales who are shaved in the brief/panty area, like the penis to be either small or large, breasts to be large or small, and feet.

If you made searchable categories within the "shemale" for those things, particularily the feet, you'd have an instant fan base flocking to you. There are shemales sites that do huge penis and small titties, but never all four (large and small penis and breasts).

Also, there seems to be a couple of geographic areas with more than usual shemale populations (SE Asia and Brazil), so a map that showed where travelers could meet them in shemale friendly bars and districts would be a huge plus too.

Last but not least would be to make sure that bad crossdressers are not given top fold status, as nothing will drive shemale fans visiting for the first time away than a fat, hairy, old fart wearing a bad wig and clothes from the 1940s. Don't know you'd do that, but it is a huge turn off to look for a hot shemale and seeing a guy that couldn't laid in a whore house with wallet full of hundred dollar bills. I'm just sayin :)