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Groupon, a 'deal for the day' website, was close to being acquired by Google, but failed at the last minute. Google was meant to have offered over $2.3 billion more than Yahoo!'s reported $3 billion offer, but was rejected.
This led to the media questioning why, and whether Google even had a chance in the first place. After talks brown down, it became apparent that though Google could have bought out right Groupon, it had failed for no apparent reason. The LA Times called it a "head-scratcher".
But Google took a confidence hit, and one hell of a public relations hit too.