Two brothers have quit a company that they founded and sold to Google "amid reports of growing tension" between them and the online behemoth, Online Media Daily reports.

Chad and Ryan Steelberg last year sold dMarc, an automated radio ad placement company, to Google for $102 million and the promise of future riches. But those future riches had too low a cap for the brothers' taste and they kept wrestling with Google over the company's approach to radio ad sales.

This isn't as big as last year's news of Google buckling to China's censorship laws (which, it turns out, wasn't just bad for the world, but bad for business) -- but it's still a significant sign of Google's steady march toward McDonald's/Nike-dom.