My understanding of an Internet "Easter eggs".

My understanding of Internet Easter eggs is that it is the hidden/secret message or screen buried in an application. They are used to display the credits for the development team or to display a humarous message.
The list of ten Internet Easter eggs.

1. The Konami code.
2. Yahoo's singing yokel.
3. JeBlue wants a sandwich.
4. Google Easter eggs.
5. Awesome 404 pages.
6. Tumblr listen box.
7. Flicker in Pirate speaker.
8. Moo. com's massive, Internet-wide Easter egg hurt.
9. Amazon's hidden employee page.
10. Random subjects in Yahoo Mail.

(http://news.cnet.com/8301-17939_109-9976422-2.html)