Friendship -- Repeatable reasons, irreplaceable friends -- What shared identity means in friendship -- Why bad people can't be good friends -- Robots -- False friends and false coinage: a tool for navigating the ethics of sociable robots -- What's wrong with robot friends for lonely seniors? -- Counterfeit currency versus monopoly money: using appearances to build capacities -- Should you buy yourself a friend? Ethics of consumer markets for robot companions -- Social media -- Humans aren't cows: an Aristotelian defense of technologically-mediated friendship -- Taking control of conversations through technologically-mediated communication -- What words can't say: Emoji and other non-verbal elements of technologically-mediated communication -- The moral import of medium