I don't know why I
haven't done this earlier. This ought to help Google bring interesting
people here. It will also give good cues to help new visitors decide if
they want to hang around or fly elsewhere.
Social software, e-learning,
interdisciplinary communication, knowledge sharing, knowledge
representation, knowledge architecture, unifying concepts, scholarly
networking, collaborative filtering, social networks, social emergence,
open hypertext systems, self-organization, collective intelligence,
online community, trust and reputation systems.
(by the way I currently show up first on searches for "knowledge representation" "online communities", although I'm willing to bet that I'm the only one who has been crazy enough to search for that. :-)
And here are some of my favorite standards, in case acronyms make more sense to you than words: XML, RSS, ENT, XFML, XTM, FOAF, and RDF.