User:Smtchahal/Userboxes/Facebook

Usage
In the following code, replace "  " with, obviously, your Facebook username (i.e. the part that comes after http://www.facebook.com/). Hence, if your username is "Username", your code and its result would be

If the paramater is left blank, the word "here" would be linked to "http://www.facebook.com//" instead (if the userbox is placed on your userpage or your talkpage).