Same thing, this site was getting good SE hits from Google mainly. Then one day it slowly started disappearing (as the Google databases all starting syncing up with new info), and now I can't get even close to first page for a couple search terms, i'm permenantly at the "end-of-results" for those terms.
I try to advertise with the same terms and adwords keeps suspending the ads. They definately have a hard on for killing anything promoting "teen" it seems including domains with the word "teen". I might need to develop sites with MILFs

NOOOOOOOO!!!!!!!