I would list it..
just a few remarks..
- maybe it's my internet connection (DSL) but the site loaded pretty slow for me.
- your full images are very big, you might want to resize them before submitting
and a little tip: in your sponsor URL there is a variable where you can give in the banner name or something like that "p=p&b=&cen=&c="if you fill in b=banner1 or so you can see exactly which ad made you a signup. Always nice to know
