If the current Web is like a giant text file - which you can search for instances of particular words – the Semantic Web would be like a database, where every item of information is categorized, and new queries can combine categories in any imaginable way. You could, for instance, search the Web for a restaurant within a mile of a railway station in a town with a theater that offers vegetarian lasagna and at least one lamb dish. And if you wanted the restaurant’s menu, you could pull up just the menu – not page after page of review sites that happened to use the word "menu."
(added to mobilemarks as well)
Related: Social Networking Privacy: How to be Safe, Secure and Social
Note: This is not an endorsement.
You haven’t said much lately. What’s been going on?
I haven’t felt like talking. I don’t have very much to say.
You always have something to say. What’s wrong?
I guess I’ve just been sitting in stunned silence. You know: BP’s spewing gusher a mile under the surface.
Oh for heaven’s sake! You need to get a life.
Like I said: stunned silence.
It seems like Apple is using the same sneaky marketing tactics as Microsoft does with its HTML5 demos page - which doesn't really use any HTML5 either. This similarity is hardly surprising considering both companies are pushing a non-Free patent-encumbered codec for HTML5 video.