This list is certainly not definitive but if you are not in the Computer Sciences by way of study or profession then the info below should help you get started...
Codecademy: Learn to code
www.codecademy.com/
Lessons to learn to code interactively.
Learn | Code.org
code.org/learn
Choose from 3 activities designed to give you your first experience programming.
Code Avengers: learn to code games, apps and websites
www.codeavengers.com/
Learn how to code games, apps and websites with fun and effective interactive games. HTML, CSS and JavaScript ...
Hurricane Electric Interactive Programming
https://code.he.net/
Interactive Programming Courses. Perl · PHP · Ruby · Python · SQL. Web Development Courses. HTML · CSS ...
Interactive Python Tutorial
www.learnpython.org/
LearnPython.org is a free interactive Python tutorial for people who want to learn Python, fast.
RubyMonk - Interactive Ruby tutorials
https://rubymonk.com/
Free, interactive tutorials to help you discover Ruby idioms, in your browser!
Code School: Learn by Doing
https://www.codeschool.com/
Code School teaches web technologies in the comfort of your browser with video lessons, coding challenges, and ...
List of interactive programming websites - Reddit
http://www.reddit.com/r/learnprogramming/comments/o3kej/list_of_interactive_programming_websites/
Codecademy: Learn to code
www.codecademy.com/
Lessons to learn to code interactively.
Learn | Code.org
code.org/learn
Choose from 3 activities designed to give you your first experience programming.
Code Avengers: learn to code games, apps and websites
www.codeavengers.com/
Learn how to code games, apps and websites with fun and effective interactive games. HTML, CSS and JavaScript ...
Hurricane Electric Interactive Programming
https://code.he.net/
Interactive Programming Courses. Perl · PHP · Ruby · Python · SQL. Web Development Courses. HTML · CSS ...
Interactive Python Tutorial
www.learnpython.org/
LearnPython.org is a free interactive Python tutorial for people who want to learn Python, fast.
RubyMonk - Interactive Ruby tutorials
https://rubymonk.com/
Free, interactive tutorials to help you discover Ruby idioms, in your browser!
Code School: Learn by Doing
https://www.codeschool.com/
Code School teaches web technologies in the comfort of your browser with video lessons, coding challenges, and ...
List of interactive programming websites - Reddit
http://www.reddit.com/r/learnprogramming/comments/o3kej/list_of_interactive_programming_websites/
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