Kara Swisher in News on March 2, 2011 at 4:10 pm PT
Microsoft–furious over a recent talent grab of its top advertising exec by Facebook–has been considering a wide range of options, including legal action to block the move, according to sources close to the situation.
While it might not come to that, tensions between the two companies, who have partnered closely in the past, are running high over the hiring of Carolyn Everson. She had been head of global ad sales at Microsoft and has been hired to be VP of global sales at Facebook.