Regardless of what I’ve said about the whole ‘LSI’ and Google crap in the past, one things worth bearing in mind is that all modern search engines do semantic analysis to one extent or another...
"Describing the Semantic Web as a “Web of data” is not too helpful for most people, I have learned." There’s a lot of talk about it, but for most Web users, the idea described in 1981 by Tim Berners-Lee means little.