“Half my advertising is wasted, I just don’t know which half,” John Wanamaker https://t.co/CZBexQ0cUD #Marketing November 29, 2016 by Jack Yoest · Published November 29, 2016
#AlertStudent this is an effective endorsement #marketing (unpaid link) https://t.co/cxZGSArxOv September 2, 2016 by Jack Yoest · Published September 2, 2016
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