Easter egg

Hi all

Today i want speak about "Easter egg".
In Information Technology, "Easter eggs are secret responses that occur in response to an undocumented set of commands." how is correct defined in Wikipedia.

Basically an "Easter egg" is  a programmer's signature, a way to be recognized.

Here some internet examples :

You Tube : Try to write "do the harlem shake" in the search bar and find it.
http://theoatmeal.com/ : Try to see source html code
http://www.entercomputers.com/ : Visit this website and type 'penguin' on the hompage. Note animated penguin. Then wait for something else to happen.
http://www.miniusa.com : Type ‘reverse’ in the search field and then hold down Shift and click on the gear lever.

There are many internet sites about, for example here.

Stay tuned.