I mean they should operate a similar CPM network like Tribalfusion and Valueclick on top of adsense. You will get better advertisers and more competition thus driving up CPM rates. I don't trust the likes of Tribalfusion, Valueclick and others because there is no way of knowing how much they keep for themselves, but with Google there is this trust they are not going to sell you short. Also, it will be a lot easier for webmasters to have things handled by a single reputable name. I know its important to diversify, but its also impotant you get what you deserve and there is transparency. Personally, I hate having to apply for accounts with lots of different companies and dealing with them can also be really frustrating. Personally, I would rather have Google deal with my CPC, CPM and CPA advertising, all from a single contol panel.
yes i completely agree with this.i have thought about it earlier.so would there be an impression fraud then?i guess there would be