there will be other jobs. 200 years ago we were largely working on the land and about a 1/6th the population. mechanised farming now occupies a small single digit workforce, yet we still have tens of millions employed.
internet or WWW? you know the difference, right?
either way working in IT, no couldnt do without it. at home, times i wish i could, its a massive distraction or excuse not to get stuff done. but then so are games, TV, even books when one thinks about it.