LOL! you are a gramatic bastard!!
I know .... The thing is, this are only two sites running under the umbrella of a bigger network which is still not launched ( OnanistsCorner.com ) .... Which will bring more "Onanist" Sites in the near future
So everysite will have some sort of Onanist reference ....
About the gramatic thing which really made me laugh as i already thought about it too ... TECHNICALLY, which you seem a very onanist tech guy like me LOL, i know the term comes from a biblic part where a subject called "onan" didn't jerk into girls' cunts :P
BUT, for the non gramatical tech bastards, an onanist is just someone who masturbates a lot compulsively

So, OnanistBabes.com apply for that term if you think about it not in the gramathical sense :P
OnanistFucks, you got me there, no excuse, the terminology don't apply at all!! Again, on both sites, its more focusing on the brand than on the term itself
Hope i have you on board pushing my sites, i like the way you think ;)