According to my sources, Marissa Mayer is anxious to end Yahoo's current search agreement with Microsoft. Microsoft has offered Yahoo better terms, under what would become a new search agreement, but Marissa Mayer is not interested in partnering wit Microsoft. Instead, Marissa Mayer has been in talks with Sheryl Sandberg of Facebook to create their own partnership in search geared toward mobile users powered by Yahoo! Axis. More to come very soon.