Without the internet, the world would be a much slower place......and that's not a good thing......could you imaging how slow it would take for a internation business deal if everything had to be done through post and in person.....thats bad for economies.
It's bad for some economies.

In the case of the U.S. the explosion of technology has not been a good thing in a lot of ways. It happened so quickly that we haven't had time to adapt. It's allowed many U.S. companies to outsource more labor jobs to other countries. Between that and all of the jobs that have been eliminated through computer automation our working class has been decimated. We've shifted to an information and service-based economy, and it happened so quickly that a large percentage of our workforce isn't qualified for those types of jobs and probably never will be, so we're stuck with higher levels of unemployment until the ranks are filled with younger workers with different types of training.
Economies are all about rates and balance. When you change things very rapidly in one area there's going to be a vacuum left in another. The value of money is also relative. When some kind of new efficiency arises, unless it is exclusive to a certain organization/country/etc. it changes things across the board. An advantage that applies to every player in an economy doesn't result in an "improved" economy unless it's something that optimizes the way things are balanced. The commodities that play certain roles in the economy may shift and balances may temporarily shift one way or another, but something like higher efficiency through technology doesn't inherently "improve" an economy. In a lot of ways the U.S. economy was ostensibly better off in the decades preceeding the rise of the modern internet.
The internet has also allowed anyone from anywhere to learn about the rest of the world (provided they can get access)......and of late...organise against corrupt governemnts.
Yeah, the internet has done some great things. It's not all great, though. There are studies that show correlation between kids being bombarded with tons of content and an increase in learning disorders like ADD.