No I've never seen a Science Fiction story predicting the web. But I've read them with all the world's infomation at everybody's finger tips, Kinda what the internet may grow into. Of course the internet does allow pretty ubiquitous teleconferencing. which was predicted in a lot of Science Fiction.

The technology for various kinds of flying cars is available. The problems being noise and air traffic control. I read about this villiage in California which ajoins an airport. Everyone has private planes which they can taxi right into their garages.

Computer pets are a current fad. Look out Phillip K. Dick.

The only predictions about computers that haven't come true is where they all become sentient and take over our lives and/or blow up the world. But the are allowing a lot of "Big Brother" like survelience.

I'm pretty sure that they'll have some sort of perpetual youth drug before I die, and that I won't be able to afford it.