Ideal components
Wanted: a completely open source, open data, client and server interactive information system.
reciprocal content
http://openlayers.org/ - free maps (using openstreetmaps)
http://semanticweb.org/wiki/SemFS - webdav access to smw tagged content (java)
polyglot - jvm, ruby, python, php vs .net universe
microformats - http://microformats.org/
http://en.wikipedia.org/wiki/Mulgara_(software) - scalable rdf store
Ontologies
http://ontologyonline.org/ - meta directory
http://www.schemaweb.info/default.aspx - RDF schemas
mulgara - scalable rdf (java) - http://docs.mulgara.org/overview/links.html links to lots of orientation
http://www5.umweltbundesamt.at/ALTERNet/index.php?title=Ont:ALTER-Net_Ontology - social field ontologies
http://typewriter.freebaseapps.com/ cc typed information