Google ad guru Susan Wojcicki to take over YouTube

Google has named a top executive from its advertising business to become the new chief executive of its YouTube service. The appointment of Susan Wojcicki, one of Google's first employees, shows the Internet company is not afraid to make big moves to spruce up YouTube and perhaps boost the ad return it gets from the site. Wojcicki has served as Google's senior vice president of ads and commerce, helping to grow the company's core search ad business. YouTube's current chief executive is Salar Kam...