How would you classify this site?
 

I don't really know how to classify this site:

http://www.dirty4free.com/

I call it a "free site". But according to descriptions at some sites it's not really a "free site". It's definitely not a TGP either.

Dirty 4 Free promotes 8 different pay sites. Each day a new "gallery of the day" is added automatically at 9am. 5 galleries are shown on page 1. 5 more on page 2. Then it goes to a sort-of "join" page.

What would you call it?

I`d call it a filter site but I did`nt see any real filtering by niche happening. Or you could consider it a self made pay site tour of sorts. It may work as something extra linked off a tgp or other site or gallery with a sufficiently targeted and pulling text link. Now make it so that you could pick a niche from that main page and you could have a decent little filter site and link past that warning page from galleries etc. even through a full page ad instead.

I'd consider it a hub & a site to do some link trade on.