Custom Facebook applications are crucial for brands that run promotions on Facebook. The rules of the platform simply state that all promotions on Facebook must be administered within apps on Facebook.com, either on a canvas page or a page app. If you are about to launch an app of your own, have a look at the following tips we have picked up while developing Facebook apps for brands over the past couple of years. Some are no-brainers that are often forgotten, and some are quite specific, but all are useful to remember.
