I found a free Facebook Advertising coupon today with value of USD50. I tried to use it myself, and the coupon work very well giving me an instant USD50 to use to advertise with Facebook. If you use Facebook advertisement and interested to have the coupon, please email me with the subject "Free Facebook Coupon" at "Contact Me" at footer (scroll down this page) and I will forward you the coupon number.
For those that can read Bahasa Malaysia, there is an e-book that give a details method to get free advertising coupon for Facebook, YSM and Adwords over and over again. If you are interested to find more advertising voucher, you will need this e-book. To get one, click on the image below.