When they purchased DMarc Broadcasting few years back for something like $100M, it was a pretty big deal. Some were calling for anti-trust investigations even then.
But like some other Google acquisitions, this one didn't work out that well.
I knew only because I live in Irvine, CA where Google does their radio advertising out of. They've invited us (UCI) over occasionally to talk about it.
I now wonder if Google will be closing that office...
