What is access management, and why do libraries do it? -- Electronic resources: public and not so public -- Principles and definitions of identity and access management -- Current access management technologies -- Authentication technologies -- Authorization based on physical location: how does the internet know where I am? -- Authorization based on user identity or affiliation with a library: who are you? or what do you do? -- Federated access: history, current position and future developments -- How to choose access management and identify management products and services -- Internet access provided by (or in) libraries -- Library statistics -- The business case for libraries.