Outside By the Blue, Blue Moon (http://vaingirlfic.livejournal.com/18975.html).

authoressnebula is on LJ, so you should be able to find most of her stuff there.

Defect (http://www.fanfic.otherplaces.net/defect.htm) is a Criminal Minds crossover, and Hell and Back (http://www.fanfic.otherplaces.net/hell.htm) is its sequel. They're AU starting somewhere in Season 3.

That's all I've got, but I hope it helps!