In the U.S., free content -- whether that's cooking tutorials on YouTube or the latest news on Twitter -- is supported by advertising. In China, however, companies have succeeded in getting people to directly pay for what they consume, opening up a new source of revenue for the booming app industry and lucrative opportunities for content creators. This week, Bloomberg Technology's Selina Wang speaks to a former magazine editor who has earned millions of dollars from the weekly column that he publishes on the app De Dao. We'll also hear from two of China’s top tech investors on whether U.S. companies can learn from China’s success.