I was really sick, enough to decide not to go Geneva last friday to attend the www@20, but Nicolas Nova has posted his best notes from the day:
http://liftlab.com/think/nova/2009/03/14/20-years-of-the-first-paper-about-the-world-wide-web/

A short animation forwarded by my colleague and friend Manuel Lima on the history of internet:
http://www.lonja.de/motion/mo_history_internet.html