Here is a list of acquisitions made by Google I found on wikipedia today. The majority of the companies acquired by Google are actually based in the San Francisco Bay Area of the United States (silicon valley).
A total of 51 companies have been acquired as of March 2008.
Click the image below to see the full [...]

Interesting developments of late within online advertising platform acquisitions. With Google’s recent acquisition of DoubleClick and the release of their free ad manager platform, Microsoft is also moving forward with a recent announcement that they have acquired Rapt. Rapt, basically has developed an advanced PPC (Pay Per Click) management platform which helps publishers manage their [...]