I’m going to give advertisements through Project Wonderful a shot, to see if they’re more useful to me than adsense (Adsense works pretty well – it covers the cost of hosting; but it’s not as good as it could be from a CPM point of view).
Project Wonderful has a nifty name, which is something I like in things; but I think the way you buy ads is interesting – you pay by the day, in auctions: The person who has the highest bid gets their ad displayed. There’s more about how it works here.
At the moment, I’ve put five slots on the main Ultimate Tag Warrior page to see what happens; since that’s where most of the traffic goes (:
p.s. there will be a release of next generation UTW sometime soon…