SPARQL: the video (2015-05-03) Well, a video, but a lot of important SPARQL basics in a short period of time.
Running Spark GraphX algorithms on Library of Congress subject heading SKOS (2015-04-15) Well, one algorithm, but a very cool one.
Spark and SPARQL; RDF Graphs and GraphX (2015-03-29) Some interesting possibilities for working together.
Driving Hadoop data integration with standards-based models instead of code (2015-03-29) RDFS models!
R (and SPARQL), part 2 (2015-03-29) Retrieve data from a SPARQL endpoint, graph it and more, then automate it.
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.
Microdata tests: Potrzebie Moses Schliessen Fangio