We will create a social application that will allow users to share images they find on the internet. We will need to build the following elements for this project:

• An authentication system for users to register, log in, edit their profile, and change or reset their password
• A followers' system to allow users to follow each other
• A functionality to display shared images and implement a bookmarklet for users to share images from any website
• An activity stream for each user that allows users to see the content uploaded by the people they follow

This chapter addresses the first point mentioned in the preceding list.