Google Easter Eggs
Many of us might know about the following Google search result which is not as expected but teaches you what it is in an humorous way :)
http://www.google.com/search?q=anagram [Notice the Did you mean feature … ]
Did you mean: nag a ram
One can use Wolfram|Alpha to create anagrams
http://www.wolframalpha.com/input/?i=anagrams+pepsi+cola
Similarly other Easter eggs are
http://www.google.com/search?q=ascii+art [Notice the Google logo in search result …]
___ _
/ __|___ ___ __ _| |___
| (_ / _ \/ _ \/ _` | -_)
\___\___/\___/\__, |_\___|
|___/
http://www.google.com/search?q=recursion [Notice the Did you mean …]