In the last days facebook has allowed to it users that have facebook pages less than 25 fans to add a username (example : facebook.com/PronlineSpace ) .
Many facebook users have little facebook pages with less than 25 fans that's why they don't have permission to use the username on it to make the link easy and short for other users and this can make getting more fans difficult .
But now it's different you can add username for your page just in creating steps of your page and to do that:
- just you need to visit : facebook.com/username
- Choose your facebook page
- Choose the username (facebook.com/example