According to undisclosed sources cited by The Sunday Telegraph, Marissa Mayer, chief executive of Yahoo!, and Sheryl Sandberg, Facebookâs chief operating officer, are in talks for a “major leap forward in search.” As you already know, Bing is the only search engine that has explicit deals to access data from Facebook, and uses this data The post Rumor Radar: Yahoo! Facebook Search Engine Plots appeared first on Search Engine Journal .