This week, Paul Gillin and David return to the airwaves with the latest of their MediaBlather podcasts. They talk about the new wave of question-and-answer sites.  The soaring popularity of Quora, the new social network that has people scrambling to deliver the best answers to each other’s questions, has created new interest in a tried-and-true metaphor. LinkedIn and Yahoo both have had its Answers sections for quite some time now. You can use these answer sites to build your professional credibility and visibility in the smallest of niches, but how do you know where to place your chips with so many options from which to choose? The duo discuss this growing trend.

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