^ This

Actually, it's very very big, it's just full of crap. Looking for something/somewhere decent on the internet is like trying to find chocolate in a sea of poo.

I don't think it's ever likely to die.. as Akaria says it's more likely to become so pervasive that we no longer think of it as an entity as in "the internet" and more as a form of communication and information-sharing.

If ever it did die it'd probably be as a result of the collapse of modern human civilisation i.e. a large scale nuclear/biological war or disaster.