How to Create a Wildly Successful Facebook App
Jessica Meher recently wrote a great article on Hubspot explaining how to create a Facebook application that is successful. To explain the simplicity behind great applications, she featured two examples, Take This Lollipop and Elf Yourself. Both which were really simple to make yet gained extra-ordinary success. For example, Elf Yourself only took 30 minutes to script.
PS! I highly suggest going through both of the mentioned applications. Read the full article here. You might just gain some great ideas for your next application!