Som interesting news about the lack of Proper - unFiltered news regarding the Olympics...it's an interesting trail.
The news was posted from within Bloggers "offical" Olympic Blog that there wouldn't be any blogging alowed by any particpant.
It's related to the 2000 olympics. The IOC says it was a no-no back then. Stating that if a participant (say swimmer, or amature) did keep a "journal" that it would be tanamount to acting as a journalist...and that it would get you kicked out of the games.
Referenced from David Akin's Blog