Jerry Yang's least favorite investor bought nearly seven million more shares of YHOO. BoomTown reporter Kara Swisher did my homework for me again: Todd Bradley, head of H-P's $28 billion Personal Systems group, has been added to the list of potential Yahoo CEOs. Just to keep things complicated, the board my appoint an interim CEO to give off the appearance of someone actually doing something at Yahoo.(Photo by AP/Charles Rex Arbogast)