DETROIT/SAN FRANCISCO (Reuters) – 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. The decision by GM, the third-largest advertiser in the United States, marks the first highly visible crack in Facebook’s strategy and underscores doubts about whether advertising on Facebook works better than traditional media. …

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GM to drop Facebook ads due to low consumer impact



