W3C

For anyone who has used the open source tools that W3C has developed, I would highly encourage a small donation to keep their tools free and available to the public. Their tutorials and courses are an invaluable resource that is free for everyone wanting to learn more about web development.

I have been studying web design on and off for years and learning HTML 5 most recently. I had never heard of http://www.w3.org until very recently for some reason. I have found the site to be one of the most valuable resources on learning web design.

The service is really worth it and worth supporting them! I`ve learned HTML and CSS from here, and now learning the JS and databases. The site really provides great service and really can help you educate yourself, just some self-discipline and thats all!

It's a reliable source to locate the latest webpage configuration tips and tricks and also helps to troubleshoot incorrect or non-optimized issues on existing webpages.

A good site to self learning of web building skills for free. The tutorials are detailed and easy to follow.

Great website for web developers! I'm reading and learning every day