StackOverflow
Q&A for professional and enthusiast programmers
http://www.stackoverflow.com
W3Schools
W3Schools Online Web Tutorials
http://www.w3schools.com
Code Canyon
Browse the largest script and code marketplace on the web. Find WordPress plugins, jQuery plugins, Javascript, CSS and more. Save time, Buy code.
http://www.codecanyon.net
CodeProject
Free source code and tutorials for Software developers and Architects.; Updated: 17 Nov 2015
http://www.codeproject.com
SitePoint
Learn Web Design & Development with SitePoint tutorials, courses and books - HTML5, CSS3, JavaScript, PHP, mobile app development, Responsive Web Design
http://www.sitepoint.com
Code Academy
Learn to code interactively, for free.
http://www.codecademy.com
PHP.net
PHP: Hypertext Preprocessor
http://www.php.net
Tutorialspoint
Free tutorials and reference manuals with examples for Zookeeper, Ionic, Discrete Mathematics, Grav, RSpec, PyQt, Brand Management, Work Civility, WPF, WebGL...
http://www.tutorialspoint.com
W3.org
The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web ...
http://www.w3.org
Bootstrap
Bootstrap, a sleek, intuitive, and powerful mobile first front-end framework for faster and easier web development.
http://www.getbootstrap.com
Java.com
Java + You
http://www.java.com
JSFiddle
Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
http://www.jsfiddle.net
CSS-Tricks
Tips, Tricks, and Techniques on using Cascading Style Sheets.
http://www.css-tricks.com
ASP.net
http://www.asp.net
Team Tree House
We pride ourselves on providing the most up-to-date content to teach our students core skills necessary for standing out in the job market of today.
http://www.teamtreehouse.com
jQuery
jQuery: The Write Less, Do More, JavaScript Library
http://www.jquery.com
Python
http://www.python.org
Pluralsight
Unlimited online developer, IT and creative courses, starting at $29 per month with new training daily. Courses authored by top industry experts on the most ...
http://www.pluralsight.com
Code School
http://www.codeschool.com
C# Corner
http://www.c-sharpcorner.com
Raspberrypi
http://www.raspberrypi.org
MySQL
http://www.mysql.com
Red Hat
http://www.redhat.com
jQuery Rain
http://www.jqueryrain.com
Ray Wenderlich
High quality programming tutorials: iOS, Android, Mac, and more!
http://www.raywenderlich.com
CodePen
A front end web development playground.
http://www.codepen.io