Adsense relatively makes little since they pay most to site-owners, whatever they call the ads on Google make the money. After 11 years has, Google has what, other than search?
Google can disappear tomorrow and Bing, Blekko and DDG can take over. Webmasters will get more traffic since all have way less ads than Google, and that's about it.
You know what happened after the fall of the Roman empire, do you?
"Google Network Revenues - Google's partner sites generated revenues, through AdSense programs, of $2.50 billion, or 30% of total revenues, in the fourth quarter of 2010. This represents a 22% increase from fourth quarter 2009 network revenues of $2.04 billion."
If publishers are paid 68%, this means Google's share is roughly $650mill for that quarter.
