By AMIR EFRATI Google Inc., trying to become a middleman for selling video ads on the Internet, will soon test a service that matches advertisers with website publishers, including Google’s own YouTube video site. The Silicon Valley company is creating the video marketplace within its DoubleClick Ad Exchange, Neal Mohan, a Google vice president for product [...]

Microsoft Corp.’s $6 billion deal to buy an online-ad specialist called aQuantive Inc. puts into high gear a race between Madison Avenue and a new guard of technology businesses that are trying to dominate the unbridled market in brokering Internet advertisements …more