TheWebTower.com I only have one ad going right now (earning close to $10 a day) and I'm wondering if I should move it up more?? Should I add another ad? When I get the forum up, I'll have ads there. But I just need your help. I don't want ads cluttered everywhere, I try to keep it minimal and user friendly. But I'd also like to increase my earnings. Thanks!
You need to try them out to get the result. Move them up or add another units for few weeks, if it not provide good result, then go back to initial setting.
I usually put on 2-3 ads on my websites. Here's some suggested places to put ads from google themselves: https://www.google.com/adsense/support/bin/answer.py?hl=en&answer=17954
google also has an ad rotation tool now, although I don't use it, but you can freshen things up with that.
I'd definitely add more if you are already making $10/day.. I try to keep one on the top, one in the middle and one on the side of the content..