A small piece of advice for other people who use AdSense: The theme and colors you choose might make a huge difference on how often people click on your links.
I used to have the Flannel Ocean theme for the Art Tutorials Wiki. But since the Google Ads also were on a white background, they didn't exactly spring into the eye. But now I've switched to the Co theme, and the ads are much more visible - see here - and the number of clicks seems to have increased dramatically since the switch (though it's still fairly soon since the switch, and thus this might be a statistical fluctuation).
Anyway, choosing the right colors and themes is something you should carrefully think about when you are using AdSense.