At this summer's Institutional Web Management Workshop in Sheffield (IWMW 2010), I demonstrated how it is becoming feasible for a content management system both to consume and to produce linked data resources.
api: relevant content on this site
An application programming interface (API) is a particular set of rules and specifications that a software program can follow to access and make use of the services and resources provided by another particular software program that implements that API. It serves as an interface between different software programs and facilitates their interaction, similar to the way the user interface facilitates interaction between humans and computers. (Excerpt from Wikipedia article: API)
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