The enterprise IT landscape increasingly mirrors the web itself. It is evolving toward loosely coupled systems, where each of these components handles its own information resources, and loose associations and linkages integrate these resources with other systems. Linkbases make such associations between resources accessible in a machine-readable way, by providing a common, simple, and extensible format for describing the relationships between resources. Built on the phenomenally successful principles of web architecture, Linkbases can facilitate collaboration and knowledge discovery by giving users a better way to describe and discover relationships between content, people, concepts, and organizations. Linkbases thus serve as powerful approach toward fulfilling the promise of Enterprise 2.0 efforts to catalyze knowledge production.