Dropping OPTIONAL blocks from SPARQL CONSTRUCT queries (2014-10-16) And retrieving those triples much, much faster.
A schemaless computer database in 1965 (2014-09-13) To enable flexible metadata aggregation, among other things.
Exploring a SPARQL endpoint (2014-08-24) In this case, semanticweb.org.
When did linking begin? (2014-07-20) Pointing somewhere with a dereferenceable address, in the twelfth (or maybe fifth) century.
Integrating hiphop vocabulary scores with other relevant data—then querying it (2014-06-10) With a little JSON + DBpedia integration.
Latest: Learning SPARQL from O'Reilly.
Logo for Kids I was thinking about writing an introduction to programming for middle school kids using the Logo programming language. After writing about 90 pages and deciding not to pursue it, I've made an Acrobat file of what I did do available for anyone who can use it.
Operating Systems Handbook Wouldn't "Working knowledge of UNIX, VMS, OS/400, VM/CMS, and MVS" look great on your resume? Formerly a $49.50 hardcover from McGraw-Hill; now a set of Acrobat files free for you to download!
rdfdata.org: A directory of publicly available collections of RDF and web services that return RDF.
XSLT 2.0 articles: XML.com has a complete list of my Transforming XML columns about XSLT; for people interested in learning about XSLT 2.0, I've created a separate list showing just the articles covering the new features and other issues.