Hackr.io - There are tons of online programming courses and tutorials, but it's never easy to find the best one. Try Hackr.io to find the best online courses submitted & voted by the programming community.
Codefield - Tools for developers, designers and photographers
CodeAvengers - Code Avengers is the fun, easy way to learn Javascript, the computer programming language of the...
LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
CodeWizardsHQ - Fun and effective live, online coding classes for kids. Enroll in coding classes for kids to learn coding languages like Python, Java, HTML/CSS & more!
GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.