Complements and substitutes: https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ Modern w

Complements and substitutes: https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ Modern web companies don't make money from the web, they make money from something you do while you're on the web. The less the web costs to use (in the broadest possible sense of cost), the more people will use it, the more money they will make. That's why Facebook's trying to pay off Indian ISPs, and Google's pouring money into web browsers and internet balloons. Microsoft came late to this party because their original make-money-from-the-OS model meant they were trying to compete using the browser, but now that they have a cloud strategy like everyone else, the law of complements has turned them into good web citizens too. Thanks, Satya!