'There Is No Ad': StumbleUpon Revamps Ad SystemADOTASMarc Leibowitz, VP of business development and marketing and a Google AdWords vet, chimes in: “We consider StumbleUpon more complementary to things like … addthis_url = 'http%3A%2F%2Fadwords.the-venture.net%2Fwordpress%2Fthere-is-no-ad-stumbleupon-revamps-ad-system-adotas%2F'; addthis_title = '%26%238216%3BThere+Is+No+Ad%26%238217%3B%3A+StumbleUpon+Revamps+Ad+System+%26%238211%3B+ADOTAS'; addthis_pub = '';
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‘There Is No Ad’: StumbleUpon Revamps Ad System – ADOTAS