I can't see the internet itself developing any further. What will develop are computers and technologies that work along side it. Everything is pretty much possible now with the internet. Teaching is possible, by uploading topics for discussion on learning forums e.g. Moodle which schooles can use to have discussions on certain subjects etc. I doubt exams would be used with in 20 years time, I can see it being pointless because you need that middle man to keep an eye on them, the internet cannot provide it because there is always a way to steal or copy files on the net, but you can't in real life as easily.
EDIT: Why are people talking about the design of computers? Web = Internet. Not computers.













Its either that or I'll rule it *evil laugh* 

