This is another of those posts about sharing experiences and experiments. A couple of months ago I reported on the revenue streams of one of my sites and how the biggest slice of pie revenue was taken by Adsense and how I wanted to increase other income sources to minimize this dependency.
One of the other revenue streams I looked at was Tribal Fusion. They are a CPM ad network meaning you get paid per impression rather than per click. I implemented them a couple of months ago and placed a 468×60 banner at the top of each page, a vertical banner on the left navigation bar and rectangle in between posts on index pages. These ad positions were previously not used for anything constructive so any income generated should just be an addition, thus reducing the Adsense percentage and increasing the income to boot.