LOL, Extreme Paychecks doesn't have any spanking sites. They have one femdom and one cookie cutter bondage site, that has the odd "there's a hand resting on her butt, she must be getting a spanking, ooh!" picture. Not to knock it, I'm just sayin'. (And laughing.)
Okay, good spanking sponsors not mentioned above:
Spanking Dollars -- They have Girls Boarding School and many others. Quality unique European caning content with cute girls. Not PPS but the revshare payouts are nice.
Cybernet Bucks -- They do
Whipped Ass. Quality F/f spanking and domination. Again, revshare only. (Actually, if there's a pure PPS spanking program out there other than Epic Cash's Brutal Spankings, I haven't heard of it, and spanking is my main niche. Sorry, that's just how it is.)
Tushy Cash -- They have
Bad Tushy, plus some other tushy-related sites. Too many rectal thermometers for MY taste, but it converts spanking traffic very well.
GUBA -- these are the archives-of-Usenet people. Links to newsgroups like
alt.binaries.pictures.erotica.spanking do very well.