Web 2.0/3.0 and collaborative services

Web 2.0 turned readers into contributors, through blogs, wikis, tags and social sharing, and libraries used those tools to build services with their users rather than merely for them. Web 3.0 adds a further shift, toward machine-readable, linked and personalised information. A library wiki edited by staff and users together, and a catalogue enriched with user tags, are collaborative services in action.