Penenberg, Adam L.  <br/><br/>
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. 
<br/><br/><label>ISBN: </label>1401323499 9781401323493 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic commerce Marketing.<br/>Online social networks Economic aspects.<br/>Viral marketing.
<br/><br/><label>LC Class. No.: </label>HF5415.1265   / .P46 2009