Kontera vs Infolinks vs Vibrant Media

I decided to give these networks a shot on some of the sites. They complement adsense very well.

So far Vibrant and Infolinks seem to give highest income at around 35% adsense income level. Kontera is far back with only 15% compared to adsense.

If you want to easilly rise the income on your sites I recommend experimenting with these sites.