# Show Notes In which we talk about App.net closing down, how even good business models do not guarantee successful businesses, and the future of paying for things on the internet—especially whether social media will ever be the kind of thing people are willing to pay for. ## Chapters • Intro (0:53) • Follow-up: Fixed and Marginal Costs (0:53–1:44) • What Happened to ADN? (1:44–7:26) • Paying to Socialize (7:26–17:41) • Free or Not Free (17:41–23:00) • Conclusion (23:00–24:47) # Music • “Mountain Song” (http://little-chief.bandcamp.com/album/lions-den), from Lion's Den by Little Chief. Used by permission. • “Winning Slowly Theme” (https://soundcloud.com/chriskrycho/winning-slowly), by Chris Krycho. Used because we don't need permission to use our own stuff! # Links • [App.Net State of the Union](http://blog.app.net/2014/05/06/app-net-state-of-the-union/) – in which Dalton Caldwell (founder of App.net) announced publicly the layoffs and future of the service.