Pinterest has enjoyed exponential growth since its inception in December 2009.     Its simple design allows “pinners” to pin material to share with other visitors.     However Pinterest is discerning about who may post material on its website.     Interested individuals must request an invitation to join the site.     This controlled approach has not hindered its ability to gain rapid popularity, however.     The company amassed a whopping 17.8 million users since it began to operate as an open-beta.     Reporter Alex Konrad likened the company... [More]

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