[caption id="attachment_807" align="alignnone" width="98" caption="NOT the P&G Tremor"]
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You have to take your hat off to the marketers at P&G - I have just finished looking over a presentation by their Janelle Zurek called "Leveraging Cognitive Science to Create Word-of-Mouth (2009) published by MSI in a conference summary.
Tremor, cognitive science and word-of-mouth