Except for Microsoft and Facebook all the email newsletters/new product announcements/whatever actually add value to my life since I actually find them interest

Except for Microsoft and Facebook all the email newsletters/new product announcements/whatever actually add value to my life since I actually find them interesting or I'd click the unsubscribe link. With Microsoft I try to get them to stop sending emails but it seems to not even be possible without some sort of advanced MSDN certification. With Facebook they seem to come up with some new opt-out classification every time they get some bad press and start filling up my inbox with stuff I couldn't care less about.