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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.

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

Extensive German language course, also suitable for beginners. Learn with videos from native speakers with subtitles in English and German. Easy handling and rewinding of videos.

In this online course, former U.S. president Bill Clinton shows how to inspire diverse teams, manage criticism, and mediate conflict.

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.

In this online course, Oscar winner Helen Mirren teaches acting. The course includes more than 20 video lessons and various supplemental materials.

In this online course, presidential campaign strategists David Axelrod and Karl Rove reveal what goes into effective political strategy and messaging. The course includes more...

In this short online course, former Starbucks-CEO Howard Shultz teaches business leadership.

Khan Academy provides various free lessons for learners who prepare for the SAT test.

This online course teaches how to build web apps with one of the most portable and in-demand programming languages available.

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

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.

In this online course, Mariah Carey teaches how to use the voice as an instrument. The course includes several video lessons and various supplemental materials.

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 teaches how to create animations as well as how to test an app, how to use Google Play Services, and how to simplify networking by using Retrofit and RxJava.

This online course gives an introduction to TypeScript (a programming language that builds on JavaScript).

These online lessons explain the basics of spine and back anatomy. In addition to the free video lessons, further (paid) trainings are available.

Khan Academy provides various free introductory microeconomics video lessons. Topics include supply, demand, market equilibrium, scarcity, preferences, consumers and producers,...

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

In this online course, Garry Kasparov teaches advanced Chess strategy, tactics, and theory. The course includes more than 20 video lessons and various supplemental materials.