Training - Coding

Cheat Sheets
Codeacademy
Code Avengers
Darknet
eXtropia
GitHub Programming Books
Hack This Site
HTML5 Rocks
Javascript 4 You
Mozilla Secure Development Guidelines
NerdyData Source Code Search
Open Web Application Security Project (OWASP)
PCRE Cheat Sheet
Red Hat Secure Coding
SEI CERT Coding Standards
W3Schools
World Wide Web Consortium (W3C)