I spend about 1-1.5 hours on SEO when I put up a gallery. This entails: keyword research; writing the copy; changing the title, keyword, description, and alt tags; creating the text links to other similar galleries; adding the new gallery to all of the appropriate "doorway" pages (although they're not typical, illegal doorway pages we're used to seeing on porn sites).

SEO really slows down my gallery production, but in the end, it's worth it. One and a half years later, I'm still holding number one spots for certain keywords.

I think most of the porn industry doesn't bother with legitimate, organic SEO because it is time consuming. I think the outlook is: why SEO when I can flood the Net with 50 galleries in the same time it'd take me to SEO a gallery properly?

I think it's worth doing and worth doing right. If you're looking for the tricks, you'll just pay for it in the end.

Cheers
Dzinerbear