How To Create A WiFi Connection WITHOUT A ROUTER!!

Few weeks back I searched google with a weird requirement ...
Is it possible to create a WIFI router with my Laptop. Its GREEN Signal from GOOGLE...

There are 100 of Videos and words docs on this ,
I found some and tried it .its more useful...

http://www.youtube.com/watch?v=ndYUkSdCQ3Q

http://www.logicinmind.com/en/support/iphone-ad-hoc-wireless-network/index.html

http://discussions.apple.com/thread.jspa?threadID=1220869

USE :
I enabled my LAPTOP WIFI and used it for my IPOD.

Enjoy the WIFI.