what are the popular niches?

[Ramster]

There is no definite answer because everything is so general. Teen what? Amateur teen model sites? Hardcore teens? See what I mean!

For sales, whatever you push more will be your better niche in most cases.

As far as traffic goes, each TGP and Link List have more popular categories than others. I can tell you that movie categories are the most popular at most link lists.

Different click throughs to the sponsor are related to many factors.
1-Is it a new site? I'm getting 5 times the click throughs to my Tera Patrick pornstar galleries compared to Jenna or anyone else. Her site is brand new and noone has seen it.
2-Is the sponsor listed 100 times at the link lists you're submitting to?
3-Is the content hot or plain that has been seen many times before?

There are more of couse like layout, selling text, ect. but those above are important factors in clickthroughs to the sponsor.