00632nam a2200193Ia 4500 201221s9999||||xx |||||||||||||| ||und|| 1401323499 9781401323493 eng HF5415.1265 .P46 2009 Penenberg, Adam L. Viral loop : from Facebook to Twitter, how today's smartest businesses grow themselves / Adam L. Penenberg New York : Hyperion, 2009 ix, 274 p. : ill. ; 25 cm. Electronic commerce Marketing. Online social networks Economic aspects. Viral marketing. 0 0 0 0 GETS GETS GEN 2020-12-21 0 HF5415.1265 .P46 2009 00022867 2020-12-21 00:00:00 2020-12-21 BK 35093 35093