Facebook started the user name registration last night, I mean June 13.
Now you can give your facebook url to your friends easily such as main facebook is www.facebook.com/saidulchowdhury. Even though I missed my user name or my facebook url.
But one thing remember before you choose your user name think about that cause you are not able to change it soon as the facebook says.
The first 15 minutes, more than 500,000 user names were assigned and about 1 million in the first hour, said Larry Yu, a spokesman for Palo Alto, California-based Facebook.
And I guess this is the best step for facebook and good news for facebook user, Grab Your user name now before someone else take it!