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This course teaches how to program in R, which is a popular language used by data scientists and researchers.

This online course shows how to use IBM's Personality Insights API and interact with Twitter; participants should be familiar with Python for this course.

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

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

Khan Academy provides various free introductory video lessons on electrical engineering. Topics include circuit analysis, amplifiers, semiconductors, electrostatics, signals and...

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

This online course gives an introduction to the programming language Ruby.

This online course explores the relation between the EU and the UN. It was created by a consortium of eight universities from seven countries, including the London School of...

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

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

In this online course, best-selling author Judy Blume teaches writing. The course includes more than 20 video lessons and various supplemental materials.

Khan Academy provides various free introductory video lessons on the history of the United States.

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

This online course gives an introduction to SQL, the structured query language that is an important tool for business analysts, data analysts and data scientists.

This online course gives an introduction to the C programming language. C is one of the foundational languages of computer science, for example used in operating systems. The...

This online course teaches how to build powerful, dynamic websites and web applications using the popular ASP.NET MVC web framework.

This course shows the basics of SQL data analysis to explore dips and spikes in data and build business metrics.

This course teaches how to program in Ruby, a flexible language used to create many websites.

This course teaches how to build four webpages from scratch while learning web development fundamentals.

In this online course, "Gangster Gardener" Ron Finley teaches gardening skills and techniques, including how to grow your own food, keep your plants alive, and find beauty and...