Wow...Thankfully some people have spared the flaming.
The ones with the pics are Thumbnail Galleries. Those are what get listed on TGP's. Basically it's a page with 10-20 thumbs (generally), with some text and links to entice the viewer to join the program you are promoting.
There are also Thumbnail TGP's like Madthumbs.com which you might be referring to. They have a thumbnail preview of the gallery that the surfer will click on.
I hope this helps...If you are considering getting into the TGP game...I'd skip it if I were you. If you do want to start something in the TGP realm, I'd stick to gallery building and submitting. Having a lot of traffic from various sources can sometimes be a great combination, and many people make a living off of it.
