pt. I. Digital histories -- Building a digital society -- The socio-technical interface -- Typing the user -- Audience as community -- pt. II. Digital individuals -- Pleasing bodies -- Reality checks -- My personal public -- Going mobile -- pt. III. Digital economies -- The road to serverdom -- Digital property -- Consuming power -- Information at work -- pt. IV. Digital authorities -- Virtual democracy -- Under scrutiny -- Managing risk -- Living in a cloud -- Postscript : Towards a digital sociology.