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Khan Academy provides various free introductory physics video lessons. Topics include velocity and acceleration, forces and Newton's laws of motion, gravitation, energy,...

This online course teaches how to program in Python, a powerful and popular programming language. Many students learn Python as their first programming language.

This online course teaches basic programming knowledge to build your first PHP websites.

Free Esperanto language app with many short tests to learn "on the go". (Not a video course.)

These short online courses provided by Skillshare cover various topics around web development, including HTML, CSS, Javascript, Wordpress, and various other technologies.

In this online course, former U.S. President George W. Bush teaches leadership. The course includes more than 10 video lessons and various supplemental materials.

This series of online courses explores the fundamental building blocks of computer science, including programming, development, algorithms, and data structures. The program...

This online course teaches how to use Java to build mobile apps for Google’s Android operating system.

Comprehensive language course in Japanese. The idea of this course is to learn the language "like a native". This means that the course creates an immersive learning experience...

Free Norwegian language app with many short tests to learn "on the go". (Not a video course.)

These short online courses provided by Skillshare cover various topics around personal productivity, including motivation, project management, time management, and useful...

Comprehensive language course in Persian. The idea of this course is to learn the language "like a native". This means that the course creates an immersive learning experience...

These short online courses provided by Skillshare cover various topics around photography, including digital photography, DSLR, portrait photography, composition, retouching,...

In this online course, Christina Aguilera teaches the art of singing and various vocal techniques. The course includes more than 20 video lessons and various supplemental...

Free Swedish language app with many short tests to learn "on the go". (Not a video course.)

In this non-technical online course for a broad audience, the former commander of the International Space Station (ISS) teaches the science of space exploration. It includes...

This course teaches how to add sign up, log in, and log out functionality to Rails apps, as well as how to manage access to specific pages.

In this online course, former CEO of PepsiCo Indra Nooyi teaches how to think big, be brave, and make purpose-driven changes at work. The course includes more than 20 video...

Khan Academy provides various free introductory video lessons on health and medicine. Topics include human anatomy and physiology, circulatory system diseases, mental health,...

This course teaches how to build web apps with Ruby on Rails 4, giving learners the skills to use Ruby on Rails to create their own apps.