I've been meaning to post something on this before, but didn't get around to it (Like most of the story ideas I really need to get written up before they rot in my brain and foul effluvium dribbles out of my ears...)
If you haven't already found it, this wiki over at succubus.net is a fantastic resource for everything succubus related. Want to know where you can find succubi in films, books, TV series, games, etc, then you need look no further as the wiki contains a fairly comprehensive list. I also check out Tera's blog from time to time for useful little tidbits, reviews, pics and the continued mission impossible to find a classy succubus outfit.
A great resource, but I am slightly biased as she wrote some very nice things about my writing... :)