This shows how a major publisher is thinking about what it means to be a service in a network environment. It discusses how they are looking at structure and interaction as integral parts of their resources, and also covers their innovations with tagging and social bookmarking. A major focus is making data available in usable ways within articles.
(I was reminded of the coinage excitable: increasingly we will want some classes of resource to be both citable and executable.)
Via Peter Brantley.