Facebook Graph API hack discovered by Killswitch.me team and Sejwa.com.
You can either script it as described in the video, or simply private messaging an URL to some people on Facebook will increase the “like” count for the given URL.
I tested it, and I can confirm that indeed that is correct as of the 5th of october 2012; it also works if you private message the URL to yourself.
To message yourself, go to the page of any of your friends, press the button to private message the person, then delete the person’s name by clicking the “x” button beside it, and put your name in place. From then on, in the message menu you will find a tab to privately chat and share URLs with yourself.

