An Introduction to FOAF (49 tags)
Friend-of-a-friend, FOAF, is an RDF vocabulary for machine-readable homepages. It enables the expression of decentralized social networks akin to the centralized ones seen in Friendster and Orkut. Leigh Dodds provides an introduction to FOAF and its use.
RDF: Ready for Prime Time (2 tags)
Shelley Powers, author of the recently released Practical RDF, discusses a few noteworthy examples of RDF applications, vocabularies, tools, and services that are up and running. In particular, she focuses on those that work with other RDF-based services.
Googling for XML (2 tags)
Google's index includes well over a million XML files. Bob DuCharme shows some strategies for using Google to find the XML, RSS and RDF files that you want.