“FIRST they ignore you, then they laugh at you, then they fight you, then you win.” Mahatma Gandhi probably never said these words, despite claims to the contrary, but they perfectly describe the progress of open-source software over the past 15 years or so. Such software, the underlying recipe for which is created by volunteers and distributed free online, was initially dismissed as the plaything of nerdy hobbyists. Big software firms derided the idea that anyone would put their trust in free software written by mysterious online collectives. Was it really secure? Whom would you call if it went wrong?

At the time, selling software to large companies was sometimes likened to drug dealing, because once a firm installed a piece of software, it had to pay a stream of licence fees for upgrades, security patches and technical support. Switching to a rival product was difficult and expensive. But with open-source software there was much less of a lock-in. There are no licence fees, and the file formats and data structures are open. Open-source software gained ground during the dotcom boom and even more so afterwards, as a way to cut costs.

via Computing: Unlocking the cloud | The Economist.