Since 1998 Eggheaven has covered the world of virtual 'Easter eggs', secret hardware codes (access hidden settings in some consumer devices), plus other such curios and goodies.
The site is now maintained as an archive only, keeping all eggs and comments for reference.
Maintainer: Peter Jonas
BBC: "On Eggheaven, you will be amazed what programmers hide away in their software, secret games in software, to hidden interviews on your favorite DVDs." - BBC News Click