Modding Basics
From DCS World Wiki - Hoggitworld.com
Eagle Dynamics "Mods and Apps" Forum
https://forums.eagle.ru/forumdisplay.php?f=89
This forum contains several sub-forums that pertain to modding.
Beginners Guide to DCS World Modding
https://forums.eagle.ru/showthread.php?t=116901
A basic guide created for creating modded aircraft in DCS. Contains lots of good information, although it has been somewhat abandoned.
Beginners Guide to ESM Development
Coming 17 January 2018.