Wonder if we can compile a list of learning resources, blog posts, talks, threads etc to help those who are just learning about Contexts.
This is a wiki - so please add anything you feel is missing...
What are Phoenix Contexts?
Contexts are just dedicated modules for functionality that can easily be classified as a group.
Programming Phoenix - due to be updated for Phoenix 1.3.
http://www.resurgens.io/2017/06/26/phoenix-1-3.html by @dlively (thread)