The purpose of this chapter is to prepare you for tasks that were not covered in the book. It provided introductions to numerous topics. When a need arises for a certain feature, you now know where to look in order to find a framework that helps you implement the feature quickly and cleanly.
The chapter also gave some ideas that you may want to implement into our bookmarking application. Working on these features will give you more opportunities to experiment with Django and extend your knowledge of its frameworks and inner workings.