Some example RDF applications:
- validation
- W3C RDF Validator
- ontology
- rdfs, OWL, log:, Semantic Web Web Services
- query
- RDQL, algae, squish, ... (see survey)
- logic (rules)
- cwm, RACER, FaCT (when use with a translator)
- data servers
- Jena/Joseki, TAP (semantic search), 3store
- filtering/aggregation
- NewsMonster, PICS
- privacy and digital rights
- P3P, Creative Commons
- and more...
- FOAF (and FOAFCORP), Annotea, RSS 1.0, wordnet, MusicBrainz, Sherpa, RDFical (ICalendar)...