I'm fairly new to adsense and have been struggling as of late with adsense. I placed some code on a well-trafficked site (.net, c#, mysql) and can't seem to get many ad impressions--in fact I mostly don't see ad units appear when visiting the site.
The topic is very popular and a competitor site seems to have no shortage of ads appear on his/her site.
I'm wondering if there are any issues with page structure in my situation that I've negated? Is there such a thing a good adsense page structure?