12 great free online courses

TED Blog

Much ado has been made in recent years over the quickly rising cost of healthcare in the United States. But the cost of college tuition and fees has skyrocketed at nearly twice that rate. Going to college today will cost a student 559% more than it did in 1985, on average.

In an exciting talk given at TEDGlobal 2012, Stanford professor Daphne Koller explains why she was inspired — alongside fellow professor Andrew Ng — to create Coursera, which brings great classes from top universities online for free. Coursera classes have specific start dates, require students to take quizzes and turn in assignments, as well as allowing professors to customize their course into online chunks rather than simply recording their lectures.

When she spoke at TED Global, Coursera offered classes from four top colleges — Princeton University, the University of Michigan, Stanford University and the University of…

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The App Market’s Big Data Challenge

Kiran Kumar

The App Market’s Big Data Challenge The App Market’s Big Data Challenge

The smartphone revolution has changed our lives. For millions of people, smartphones have become essential, and the actual function of making a phone call with your phone is just another important feature. We now use our phones for a variety of tasks, from managing to-do lists, to passing time playing games or watching movies, to completing daily tasks like comparing prices or locating the nearest ATM.

Over 53% of United States mobile phone users own a smartphone, which translates to 123.3 million people, according to a November 2012 report by comScore. This smart phone revolution, which comScore claims will continue to surge for years to come, has been supercharged by major developments in software (as well as hardware) technology, allowing thousands of independent companies and engineers to bring their ideas and innovations to millions of people through mobile app markets like Google Play and…

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