
Kobo uses single sign on to simplify the registration process, avoiding the need for people to create new usernames and passwords.
They educates people on the benefits of logging in with Facebook and shows screens shots of the sharing experience and provide detailed controls for people to manage what stories are shared to Facebook.
Kobo defined Open Graph actions for some of the most conversational aspects of reading a book – such as beginning and finishing a book – to encourage sharing and stimulate discussions with friends.
They implemented the following Open Graph actions and objects:
