If you ever wonder what the secret of viral marketing of Facebook applications is, then you will find that it is all about invitations. Facebook allows an application user to invite his friends to use that application. And, as an application developer, your role is to determine when and how to let them invite their friends. You also have to decide how to make it a sure success so that the friends of your application user will pay a visit to your application. Besides this, Facebook also allows application developers to let their user send email notifications.
In this chapter, we will focus on:
Creating a successful invitation system
Creating a successful notification system
Using notifications efficiently