the 1% rule

I came across this article while perusing the Guardian Media Blog the other day. It explains the 1% rule, and here it is:
If you have 100 people online at any given moment, 1 of them will create a piece of content, 10 of them will interact with it (comment, vote up, rate ect...), and the other 79 will passively view it without contributing.

Want more statistics?
5% of Twitter users are responsible for 75% of the site's tweets.

I'm probably not part of that 5%, I do tweet an awful lot though.
Right, that's me done for media today :)