Some TGPs seem to be frequently mentioned by people trying to drive traffic to their FHGs.  Some are:

<ul>
<li><a href="http://www.thehun.com/">TheHun.com</a> (<a href="http://www.thumbs-up.net/">thumbs-up.net</a>)
    <ul>
    <li><a href="http://www.netpond.com/new-adult-webmaster-forum/58946-how-hard-next-hun.html">hilarious, especially note the comment by Shemp</a>
    </ul>
<li><a href="http://www.shemp.com/shemp004.htm">Shemp.com</a>
</ul>