I recommend watching "Big Brains" -- the people who think big and look farther ahead than most of us -- and "Cool Kids" -- the organizations and people who are most likely to try new things and to generously share what they learn.

Big Brains Who Blog

Here is my Alltop list of the Big Brains that I follow regularly

Cool Kids

Danielle Brigida of the National Wildlife Federation

Carie Lewis of the Humane Society of the United States

Wendy Harman of the American Red Cross