If you're looking for paid listings on certain TGP's simply email them...
I was curious about this before and both TheHun and Al4A got back to me in a timely fashion with info... (I never tried paid listigns though...)
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My Webmaster's Page feel free to take a peek here ;)
***Also if you're interested in a high converting
and retaining partership sponsor with
TONS of original free content (hardcore + soft) contact me for info (and I would appreciate you signing up with my referral code if you're interested).