Google has posted a thought-provoking piece to the Official Google Blog, discussing at length, Google’s system for understanding synonyms in search. As author Steven Baker says, "An irony of computer science is that tasks humans struggle with can be performed easily by computer programs, but tasks humans can perform effortlessly remain difficult for computers."

The Accoona search engine first launched in 2004 with a proprietary artificial intelligence technology backing its query engine.

The language used to describe the Semantic Web is complicated enough – at a glance, it looks a bit quantum theory-ish, just enough to make your eyes roll back into your head to look for ways to kill themselves – but Tim Berners-Lee, who’s responsible for all those Ws littering your URLs, inspired enough faith that whatever the Semantic Web was, it could be accomplished.