bugmenot firefox extension
It is very cool. Get the extension here
; download via Firefox, restart Firefox and then go play at your favorite registration-only sites. The way it works: when you reach the username/password area, right-click with your mouse in the username text field. The extension makes a connection to BugMeNot
and pulls the first valid username/password it finds, for that site. Submit, then surf. If you don't right-click, you can enter your own username/password should you happen to have it. Joy!
[via little. yellow. different.