Semantic Search - Faceted Search and Web 3.0 for Drupal

You are looking at the speed of AHIRC front page loads now, after another 18 hour day. This is 3-12X faster than the last post!!

Why the big improvement? SPARQL OPTIONAL is very expensive for some reason, and this can be avoided, by making two separate queries (Maybe stores should support this?). Anyway, I learned that trick from Benjamin Nowack. He's the author of the ARC RDF store.