Regarding galleries, then I´m happy that more and more of the TGP/MGP traffic is getting in the hands of business men and women, so we can continue the evolution in "free" porn with more and better ads.
Have seen TGPs/MGPs, which allow videos/pics to be played in html pages + videos which are designed to "tease" are also acceptable today, so things are going in the right direction
The next step we need is more critical thinking by both traffic owners and buyers, so that the overall product will be optimized.
Ex. We could take the Google approach by TGPs/MGPs only allowing 1 listing per paysite per day, which would give more variety to the surfer + possible higher traffic prices, and sponsors/webmasters should look at the performance of their galleries to cut off the traffic sources, which cost more than they generate - just like keyword optimization.
Other good ideas are simple rules for content (ex. no money shot), so that the surfer are more likely to visit the traffic buyers... DRM for videos, which after ex. 3 plays, pops an ad for the sponsor. But also things that will give the TGPs/MGPs more bookmarks, like co-branded galleries, which will give an exclusive feel to the TGP/MGP.