I added one little ad on the side. It's not that I expect this ad to make me gazillions of dollars. (heh.) It's just that so friggin many people come to this site looking for links about "how to build your own windmill." So, hopefully the google ad people will help them. If not, then I'll take the ad away.
Oh, but if you do want me to make gazillions, buy a windmill watching T-shirt! (Actually, all I'm really hoping for is to make enough to buy myself one... Cafepress is a bad addiction.)