I've been around writing slash since August 2003 or so, and my three major fandoms have been Smallville, Stargate: Atlantis, and Inception. Haven't moved over most of my older Smallville fic so you can check it out on my site. I'm also on LiveJournal and Dreamwidth.
(Wording shamelessly stolen and adapted from anatsuno, who is much more articulate about these matters than I.)
You do not need to ask my permission to remix, podfic, translate, create art for or create any secondary fanwork of any fanfic I have posted.
Anything you produce in turn should feature a link back to my work and credit me by name, and you should also share the link to your work with me! It will serve two purposes: keep me abreast/informed, and make me really happy. I'd absolutely love to know about it.