Facebookâs ties to Microsoft go back to 2006 when they first signed an advertising deal. A year later they took a $240 million investment, and the advertising relationship was extended this year. Those ties may explain why Facebook was willing to ignore its own privacy policy in March 2008 and give Microsoft access to Facebook user emails. Despite shutting down Plaxo and Google products that tried to access Facebook users over privacy concerns, they were ok with sending and displaying emails to Microsoft to let users invite Facebook friends to Windows Live Messenger.
