Google has agreed to buy Doubleclick for $3.1bn in cash.
Doubleclick is a provider of internet and ad service software that websites and advertisers to manage the banner ads that a site visitor views. The deal provides a significant boost to Google's network of third party web publishers.
Doubleclick was one of the big names during the first internet hype. So why is Google interested in acquiring a service that will only further increase its dependency on the advertising market?
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