Now that El Capitan OS X 10.11 is out, here are some excellent resources available to help you in researching what is new, learning how to take advantage of the software and work through any issues you might encounter.
- El Capitan: TidBITS Answers Your Questions
- El Capitan: The MacStories Review by Alex Guyot
- El Capitan: The Ars Technica Review by Andrew Cunningham & Lee Hutchinson
- Complete OS X El Capitan review by Rene Ritchie
- Apple’s OS X page
- Apple’s Support Page for El Capitan – my personal productivity favorite is SplitView where I can focus on two apps and nothing else for a while.