On the “R-for-data-science” community slack channel, we are currently running a book-club to study “Mastering Shiny” by Hadley Wickham (on Tuesdays at 5PM GMT).
Here are some resources that you might find useful if learning “shiny”.
General
Cheat sheets:
Books:
Competitions & Examples:
Awesome Lists:
Deployment
There are detailed notes on deploying to shinyapps.io in their User’s guide:
Notes on how to setup Digital Ocean or AWS to deploy shiny apps can be found here (thanks to TanHo for pointing these out):