General Motors, Facebook | featured news

Joel Ewanick, the agent of change brought in by General Motors just over two years ago to shake up its moribund marketing operations, has unexpectedly resigned... One source indicated that it was only decided hours before a press release finally went out that Ewanick’s departure would be described as a “voluntary” resignation. That, said several observers, raises questions about whether there was more behind the departure than simply a disagreement over policy.

General Motors Co said on Tuesday it will stop advertising on Facebook, even as the social networking website prepares to go public, with a source familiar with the matter saying the automaker had decided Facebook's ads had little impact on consumers.