OpenLink Software's Virtuoso Submission to the Billion Triples Challenge State of the Semantic Web, Part 2 - The Technical Questions (updated) Virtuoso - Are We Too Clever for Our Own Good? (updated) Faceted Search: Unlimited Data in Interactive Time Beyond Applications - Introducing the Planetary Datasphere (Part 1) Beyond Applications - Introducing the Planetary Datasphere (Part 2) Linked Data at WWW 2009 (#1 of 5) European Commission and the Data Overflow The Business of Semantically Linked Data ("SemData")