In the new role, Chippendale will develop Yahoo!'s media sales strategy and build its profile in the advertising community. He will report to Dominique Vidal, the Yahoo! Europe regional vice-president and managing director.
Vidal said: "We are operating in a dynamic online advertising market that continues to grow at unprecedented rates. We aim to build a world-class media sales organisation focused on driving thought leadership, creativity and the best customer service."
Chippendale left Sky last October after 14 years with the company. His departure came just three months after Nick Milligan, the former five deputy chief executive, joined as the managing director of Sky Media, making him Chippendale's boss. The two are thought to have clashed over the future direction of the Sky sales house.