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This is an online lecture about the design and implementation of secure computer systems. Lectures cover threat models, attacks that compromise security, and techniques for...

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...

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.

These short online courses provided by Skillshare cover various topics around freelancing, including social media businesses, marketing, sales, business fundamentals, and...

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

This online lecture series covers the basic principles of Einstein's general theory of relativity, differential geometry, experimental tests of general relativity, black holes,...

In this online course, world racing champion Lewis Hamilton teaches how to prepare the mind, body, and spirit for victory. The course includes more than 10 video lessons and...

In this online course, Dan Brown teaches writing thrillers. The course includes more than 15 video lessons and various supplemental materials.

In this online course, the world´s #1 women´s tennis player Serena Williams teaches everything from core techniques to fitness drills and improving the mental game. The course...

This online course teaches how to use relative units and media queries to create websites that can be viewed across devices of all sizes.

In this online course, professional skateboarder Tony Hawk teaches skateboarding skills and techniques.

This online course teaches how to build powerful interactive applications with this popular JavaScript library. React is an open source library developed by Facebook.

This online course teaches the JavaScript language, jQuery, the JavaScript framework and the ins-and-outs of adding interactivity in the browser.

The course presents the main trends in twentieth-century literary theory. Lectures will provide background for the readings and explicate them where appropriate, while...

This online course provides a basic introduction to metric spaces. It covers metrics, open and closed sets, continuous functions (in the topological sense), function spaces,...

This online video lecture series gives an introduction to cultural psychology.

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 online lecture series discusses the evolution and role of urban public transportation modes, systems, and services, focusing on bus and rail. It covers various topics,...

This online lecture gives an introduction to Cyber-Physical Systems (CPS), combining cyber capabilities (computation and/or communication) with physical capabilities (motion or...

This online course gives a free introduction to digital currencies such as Bitcoin. It is also the first course of an online master's program in digital currencies from the...