Eric Schmidt on its list of the 50 most important people on the Web, along with Google co-founders Page and Brin. Schmidt is one of a few people who became billionaires (in United States dollars) based on stock options received as employees in corporations of which they were neither the founders nor relatives of the founders. In its 2011 'World's Billionaires' list, "Forbes" ranked Schmidt as the 136th-richest person in the world, with an estimated wealth of $7 billion. On 20 January 2011, Google announced that Schmidt would step down as the CEO of Google but continue as the executive chairman of
Sydney Airport Corporation traffic control, aviation communications/navigation-aids, airport fire-fighting and rescue), the Australian Customs Service, the Australian Quarantine and Inspection Service, the Australian Federal Police and the Department of Infrastructure and Transport. The company's inaugural CEO was Max Moore-Wilton , serving from 2002 until April 2006; when Moore-Wilton resigned as CEO to become Chairman of Sydney Airport Holdings. He was succeeded as CEO by former Australian Broadcasting Corporation managing director, Russell Balding. In 2011, Kerrie Mather, a senior executive with MApa trust spun out of the Macquarie Group, succeeded Balding as CEO. Sydney Airport Corporation Sydney Airport Corporation Limited (SACL) is a private