on this page :
http://www.sebadrian.net/birdie/
there is a little bunny with a question mark ontop of its head..
and when you clik that , each time you clik it, it brings you to a different link .. what is the code for that?

That site you listed is the member of a webring and there is some perl or php or python script working behind it to pick a random web site when you click the link. this can be done also with javascript...i'm too lazy to look up or write the code right now.

it's part of ringsurf.com they probably got the code from there.