The rst great wave of commercial open source adoption was done by software vendors. Once they realized the quality and time to market competitive advantages of innovating by integrating open source technologies, the trend was unstoppable. The second great wave was the creation of entirely new internet business models based on the scalability of free software. Companies such as Google, Facebook, Twitter and Amazon literally would not exist if they could not scale their infrastructure using free software. The next great wave will be user-led open source communities, where enterprises and industrials will learn to master the art of open source to dramatically reduce costs and disrupt incumbent business models.