Google has bought an average of 1 company per week since 2010!

Google is a big deal. We all know it. They basically have a monopoly on the search engine market. They've revolutionized the way we use the Internet. They created a pretty sweet email platform. It turns out that is only the surface of what Google does though.

Since 2010, Google has been acquiring an average of one company per month. Overall, they've acquired around 100 companies, including Pyra Labs, Ignite Logic, Android, Upstartle, and Jotspot. Some of their biggest acquisitions have been Current Communications Group in 2005, YouTube in 2006, and dMarc Broadcasting in 2006.

Many current Google services started as companies that Google bought. For example, Dodgeball became Google Latitude, and GrandCentral became Google Voice.

(Source)