Last night I was thinking about how WFG could always use more readers, and then realized that I could contribute my Project Wondeful expertise (and a couple advertising dollars) to the project, if only I had an ad for it. So I went and designed one on my own. (Sorry if that's presumptuous, Chris, but I tried to represent the site well.) So I serached for a couple of venues to advertise on that I knew tend to draw a lot of hits for reading-type sites, and that I was pretty sure, demographic-wise, would be ripe with readers who'd like WFG. And so then I used the ad via Project Wonderful.
It's been less than a day, and I'm not exactly a high-roller when it comes to advertising money, so don't expect a huge flood of hits right away. However, if anyone else wants to contribute, you can use the ad with your own PW account and bid wherever you like! I suggest not bidding on too many sites that are already part of WFG, unless you know they have a very diverse audience.
I've only got the time to do a skyscraper, so that's all I can contribute for now.