Google's 16 biggest purchases, and how they worked out

Google's $12.5 billion purchase of Motorola will be its biggest acquisition ever -- more than four times the size of DoubleClick, the previous leader.
But over the last decade, Google has been one of the biggest -- and most successful -- acquirers in the tech industry, and owes a lot of its success to these smart buys.
Its core search advertising platform and most of its biggest new businesses, including Android, YouTube, and display advertising, all come from other companies.
Join us as we count down Google's top 16 acquisitions by value and show what happened to them.

#16: Android mobile platform, "up to" $50 million (estimated)

Aug. 15, 2011, 4:25 p.m. ET

By Matt Rosoff Business Insider

Last October, Google M&A chief David Lawee called the 2005 acquisition of Android -- the mobile phone platform started by ex-Danger leader Andy Rubin -- its "best deal ever." Less than three years after launch, it has become the most popular smartphone platform in the world.

#15: Aardvark social search, $50 million

Google paid about $50 million for social search Q&A service Aardvark in February 2010, but hasn't really done much with it yet. However, there are hints in Google+ code that suggest that Aardvark -- or what's left of it -- will soon be integrated into Google's new social network.

1 of 8

Why is Christian Science in our name?

Our name is about honesty. The Monitor is owned by The Christian Science Church, and we’ve always been transparent about that.

The Church publishes the Monitor because it sees good journalism as vital to progress in the world. Since 1908, we’ve aimed “to injure no man, but to bless all mankind,” as our founder, Mary Baker Eddy, put it.

Here, you’ll find award-winning journalism not driven by commercial influences – a news organization that takes seriously its mission to uplift the world by seeking solutions and finding reasons for credible hope.

Explore values journalism About us