The 2011 #Nifty50 Top Twitter Men Reprise
Webbiquity SMM
JUNE 6, 2011
Marty’s an international speaker at Search Engine Strategies (SES), Search Marketing Expo, SEMpdx and PubCon conferences. Consulted on social media and reputation management strategy with Dow, Hearst, IBM, Time/Life, & Barnes&Noble. David has published 15 books and his latest is Brand Relevance.
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