The World Wide Web, with all of its pages, blogs and so on- has allowed human expression in ways that would have been uneconomic and out of reach before. The most dramatic effect has been this ability for almost anyone to express himself or herself whenever they want to- and potentially be heard by many others.
Vint Cerf there, taking part in this wide-ranging discussion with, among others, Kevin Kelly and Bob Metcalfe.
The introduction leans a bit too heavily on Nicholas Carr for my liking, but it ends up in a good place.
The internet connects us cognitively and becomes a membrane through which our minds can interact, manifesting a whole new iteration of our species, who have begun to exist in a connected symbiotic relationship with technology.
The internet is the first technology we have created, that makes us more human.