For least restrictive Rules
www.sexyavs.com Pro: $20 a signup, Good random linklist, middle page sales credited. Legit Free Signups. 1 popup or 1 FPA allowed. 15 pics minimum. No Quotas
www.nakedpass.com Pro: $20 a signup, lots of fresh traffic sent to the linklist from Sexyavs. Legit Free signups. 1 popup or 1 FPA allowed. 15 pics minimum. No Quotas
then
www.freenetpass.com Pro: $15 a signup, Fast Reviews, allows multiple popups. 1 outside, 3 inside total. 20 Pics minimum.
Con: lower linklist traffic then you expect, very loosely enforced quotes.
www.pornwebpass.com Pro: Just changed management for the better, 1 FPA or 1 Console (I believe). Decent amount of traffic through the linklist for the size of AVS. Run by Ludedood.
Neutral: 60% recurring
Cons: Newer AVS, so it doesn't have people using SEs to find it, etc.
There are lots more, but those are the ones that allow popups/FPAs, pics on html with banners, etc.
ZoiNk