The sentence I found the most appealing in the Gardner Campbell article was:
“Environments are not passive wrappings but active processes. . . . The ‘message’ of any medium or technology is the change of scale or pace or pattern that it introduces into human affairs.”
This very succinctly summarized what the internet is. Activity and input are what define it. Simply by its use does the internet change behavior and social patterns. The propagation of a medium shows it true impact, whether that is millions watching TV, millions reading newspapers or millions writing blog post.
For example, Youtube exists based on the input of millions of people around the world. The message really is that millions of people have a tool that enable them to communicate globally.