00935cam a2200289 i 4500 159517112 TxAuBib 20140502120000.0 100610s2009||||||||||||||||||||||||eng|u 2010286876 9781401323493 1401323499 TxAuBib rda Penenberg, Adam L. Viral loop [HC] : from Facebook to Twitter, how today's smartest businesses grow themselves / Adam L. Penenberg. 1st ed. New York : Hyperion, 2009. ix, 274 : ill. ; 25 cm. txt rdacontent n rdamedia nc rdacarrier Includes bibliographical references and index. 20140502. Electronic commerce. New business enterprises Computer networks. Online social networks.