I believe technologies similar to the following will empower the most significant changes to the internet evolution:
1) Google’s Open Social platform, which provides a universal method of connecting among social websites broadcasting stories to facebook from anywhere on the web;
2) Facebook’s Friend Connect platform, which allows people to broadcast their stories to facebook from anywhere on the web and
3) Mobile applications that take advantage of social behavior
I believe technologies including but not limited to those listed above will empower a "sixth sense" where user will have significantly more relevant information about their environment.
I borrowed this concept from the demonstration in the following video: http://www.ted.com/index.php/talks/pattie_maes_demos_the_sixth_sense.html
Increased information is a revolution. Of course, this raises privacy concerns. However, if managed responsibly, this can create massive new efficiencies for mankind.