Google's 2010 shopping spree has cost $1.1B so far

Google has spent $1.1 billion during the first half of the year buying up 22 companies, with more than half of the amount ($681 million) going toward its recently completed acquisition of mobile ad service AdMob. Google's next biggest deal during the period was the $123 million acquisition of video service On2 Technologies. Earlier this month, Google announced plans to buy travel technology company ITA Software Inc. for $700 million. Most of Google's acquisitions consisted of startups with costs so small that it hasn't been required to specify the price it paid in each deal.