Google acquired DoubleClick, an important name on the online advertising market, for $3.1 billion and along with the finalization of the transaction, the Mountain View company will also impose a few major changes. One of them is quite bad news for some Googlers because no less than 300 employees will be fired due to the Google-DoubleClick mix. According to PC Pro, a Google official has explained the decision as an "inevitable side effect of a large acquisition." And it was a large acquisition si...