According to a report on CNN, Microsoft has been caught out paying a blogger to "correct" what it believed were inaccurate and slanted Wikipedia entries.
I'm not quite sure why this is considered such a big story given that Wikipedia is an open document format and it would be surprising if companies didn't have people being paid to make sure they were not being portrayed in ways they considered "inaccurate". Remember that I say this is a Linux advocate and a hater of Microsoft as well.
I guess the reason it's causing a storm on the blogosphere is because it was a blogger who was paid. If it was a Microsoft Communications officer no one would probably care.