This website exists pretty much just to host my blog.
Major recent projects:
A jazz album for which I played the upright bass and wrote the songs. Read more at Album "Gin & Heptatonic" by my band The Heptatonic Jazz Quintet.
The O'Reilly book Learning SPARQL, an introduction to the W3C standard query language for RDF. I have a separate Twitter account for the book where I try to do daily mentions (mostly retweets) of interesting SPARQL news: