The 10 Most Expensive Google Acquisitions

Global search corporation Google, Inc. added to its already hefty empire when it announced its planned acquisition of Motorola Mobility the morning of August 15. The purchase marked Google’s most expensive acquisition to-date at a staggering $12.5 billion.

Google has acquired more than 100 companies over the past ten years. Curious about its most expensive acquisitions thus far? Flip through the gallery below to discover how Google has integrated its top ten priciest purchases:

1. dMarc Broadcasting

In January 2006, Google acquired advertising company dMarc Broadcasting for $102 million. Google integrated dMarc into its AdSense app.

2. On2 Technologies

After negotiations between the two companies, Google acquired video compression company On2 in February 2010 for $133 million in Google stock. On2 designed video codec technology which Google used to optimize its WebM video format.

3. Slide.com

Google bought web 2.0 company Slide.com in August 2010 for $182 million. Originally founded by PayPal co-founder Max Levchin Slide.com was known as the largest third-party developer of Facebook applications until Google purchased it to make Google services socially aware.

4. Admeld

Google purchased Admeld. in June 2011 for $400 million. The company specialized in optimizing online ad yield by simplifying ad display. Google integrated Admeld with its additional DoubleClick and Invite Media acquisitions.

5. Postini

In July 2007 Google acquired web security and archiving company Postini for $625 million. It provides the cloud computing services and spam filters that Google soon integrated into Gmail.

6. ITA Software

Google purchaed travel industry software company ITA Software for $700 million in July 2010. Google uses ITA's software to optimize its travel and flight search.

7. AdMob

In November 2009 Google acquired mobile ad company AdMob for $750 million. The company helped Google improve its mobile advertising solutions.

8. YouTube

Long ago in October 2006 Google bought YouTube for a shocking $1.65 billion. Although the company wasn't absorbed by Google Video, YouTube continues to function as a Google subsidiary.

9. DoubleClick

Google purchased DoubleClick for $3.1 billion in April 2007. The Google subsidiary provides ad service and support to AdSense.

10. Motorola Mobility

Google's most recent and expensive acquisition to date occurred August 15, 2011 with its purchase of Motorola Mobility. Motorola is one of 39 manufacturers of Android handsets. By purchasing the mobile hardware manufacturer, Google hopes "to supercharge the Android ecosystem.

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