Microsoft has bought adECN. Still sitting in your chair? Yup, the ‘exchange’, which in reality is just the network ExperClick, was acquired by Microsoft today. I’m really at a loss as to what to say. AdECN isn’t really an exchange, more a loose consortium of ad-networks, and loose in the sense that they’re primarily based around one single ad-network. Why buy a crappy exchange instead of building on top of DrivePM, one of the top ad networks in the US?