The Jorne project develops software and open standards for linking Lojban text with WWW and Semantic Web metadata (e.g. RDF/N3, RSS, XML). Lojban is an artificial spoken and written language based on predicate logic.
Make XML less noisy! XEL is handy replacement for XML (and HTML)-like markup languages. Most useful if used instead of XSLT. XEL is designed to be able unambiguously translated to XML and vice versa.