Yahoo said Tuesday it has appointed Ned Brody as senior vice president and head of the Americas, effective immediately. Brody becomes responsible for Yahoo's advertising business in North and South America, reporting to COO Henrique De Castro. Brody brings more than 25 years of experience leading businesses in the United States, Europe and Asia. Most recently, he held the position of AOL Networks CEO, which included global video, mobile and programmatic advertising businesses. He also served as global chief revenue officer of AOL, responsible for the company's advertising businesses.