Just wonder why you don't really buy some ad spots on popular adult webmaster resources? For instance, we have very cheap spots at FHGStore.com. Our site is visited by more than 1K webmasters daily and has a 3rd position in AWMR top at Masterstats.com (
http://aw.masterstats.com/top-sites).
If you are interesting please find all the details here:
http://www.fhgstore.com/advertise.html
P.S. 2sponsors: your FHG submissions are welcome!