Sherry Turkle's book, 'Alone Together', is split into two parts - the first is an investigation into how people (mostly children and the elderly) interact/bond/etc with robots of varying sophistication - starts with Tamagotchi, Furby and My Real Baby, PARO, and goes onto research-level robots. The second part applies similar thinking to social media, which is why I picked up the book. But I found the robot stuff interesting. I think my main takeaway was realising that the robots don't have to actually be technologically advanced for people to form bonds with them. Interesting read anyway.