Advertising.com, Inc. has promoted WILLIAM H. MASTERSON to the role of vice president of agency relations. Masterson previously served as Advertising.com’s regional sales manager in the company’s New York office. In his new position, he will be responsible for overseeing strategies and developing new product offerings for Advertising.com’s U.S. agency partners. Additionally, MARK EVANS joined the company as an account executive. Evans comes to Advertising.com having spent the past six years working with CBSSportsline.com in a number of sales roles.