As Facebook searches for ways to increase their revenue, some users are being asked if they are willing to pay for vanity URLs. For those unaware of what vanity URLs are, they are the short strings that follow “facebook.com”. For example, the AllFacebook.com public profile has a short URL which is “https://www.facebook.com/allfacebook”. A number of celebrities and high profile individuals have been granted profile URLs for free as a way to encourage them to update their Facebook public profiles more regularly. More at; http://www.allfacebook.com/2009/04/facebook-vanity-urls/