Bill Demas has been named president and chief operating officer of Turn Inc., an Internet advertising network based in Redwood City, CA.

Demas will be responsible for strategic and operational leadership in his new position. He has served as an advisor for the company since 2007 and he also serves on the board of directors.

Turn specialized in automated online advertising targeting, using statistical behavioral modeling and predictive targeting technology.

Demas has more than 20 years experience in advertising, sales and technology. Demas led the development of a multi-billion dollar search marketing network at Yahoo/Overture.

Most recently he was president and CEO of MokaFive. He has also held executive positions with IBM, Microsoft and Vividence Corp.