http://blogs.cnet.com/8301-13505_1-9768298-16.html

^^This clinches the debate for me.  I think it would be terrifying for 
Google to have an irrevocable, unlimited license to the intellectual 
property that I transmit and receive over the MSU email system.  
Basically, Google would own my research, my ideas, and my personal 
commentary.  If this is to be the case, I think MSU should pay me to 
attend college.