XML, XSLT, and CSS
Use XML full-text articles as ordered hierarchy of content objects.
Generate item-level metadata in XML, using RDF and Dublin Core syntax and semantics.
XSLT and CSS used to present metadata and articles in either XML or HTML format depending on Browser.
Mathematics rendering using XML and CSS (MathML conversion beginning).
Real-time transformation between XML and HTML using XSLT (scalability issues).