Web-based training sites for web developers and web designers
Academic earth
A lot of free lectures, including from well-known universities (Harvard, MIT, Stanford, etc.).

Lynda.com
One of the largest educational video sites containing nearly 2,000 video courses. Subscription costs $ 25 per month, there is a weekly trial period.

Google Developers University Consortium
The site contains a huge number of courses and other useful information for working with Google products: Android, Google Maps, Google App Engine, etc. There is also training material on more general topics.

Tuts + Premium
Probably the most famous and largest site with lessons, covers many areas of the Internet and not only. Some lessons are organized as courses. A subscription costs $ 19 per month, it is possible to take free courses for a test period.

iTunes U
Great educational service from Apple for designers and developers.

WebDesign.com
Training for web designers and web developers in the form of live webinars. The cost is $ 197 per year.

Dev.Opera
Website from Opera with training materials on web technologies: CSS3, HTML5, SVG, Javascript.

P2PU's School of Webcraft
A free learning environment supported by Mozilla. Looks like the famous Codecademy . There are courses for both beginners and more experienced developers.

Why's (Poignant) Guide to Ruby
A fun and easy Ruby course with great illustrations.

Web standards curriculum
A guide to web standards, there are training materials.

Openearn
Courses from Open University, cover many technical and not only areas.

SkillFeed
Shutterstock's new tutorial website on web design, photography, web development, and more. Subscription $ 19 per month, there is a weekly trial period.

KillerPHP.com
A selection of PHP lessons for beginners and experienced developers. Subscription $ 29 for three months or $ 99 per year.

Timothy training
Despite the wretched appearance, the site contains many interesting courses on basic web technologies and programs.

Don't Fear the Internet
This site is intended for beginners, the basics of HTML and CSS are presented in the form of interesting video tutorials.

Once again I will give a link to a previous similar post on Habré: 27+ resources for online learning
Add your favorite sites in the comments.