anand84 - 5:21 pm on May 1, 2010 (gmt 0)

It needs to be noted that the product that we are discussing is THE SOLE bread-earner for a company that now has over $200 billion in market capitalization..Adsense started as a simple contextual targeting network..today we have technology like smartpricing to keep advertisers and publishers content..and as we move ahead, there will be many more new intelligence built in to keep it as worthy as it is today..If it doesn't work, the big G shall fall..

Having said that, I don't think more advertisers jumping in is any harm..Google will figure that out. The higher risk is in viewers getting ad-blind much more than they are today..Google ads have been largely unchanged over the years, and in 5 years time, I see a lot of customizations being handed over to the publishers and that's a good thing..