A while back in these very forums, I suggested that people ought to think about forming genre based groups for promoting their work. My thinking on that is simply that if you've got readers who like a particular thing, then making them aware that other people are doing the same thing helps both of you.
We even talked about doing one of them for superhero serials, but never got around to it.
Fortunately, other people had the same idea, and it actually happened. I wrote an article about it for SGL's Online Novel blog. Here's a link: