Advocacy is indebted to Crux in providing the encyclical in a number of formats to make it easily accessible to people. Advocacy has embedded the encyclical in this post where it can be read on-line or downloaded. However, it is also available on Crux here in linked chapter by chapter outline for easy access and reading. Linked here is the encyclical as it was posted on The Vatican website. Crux also contains recent commentary.