The below documentary list include links (in most cases) to free online streaming full length videos:

Food:

Food Inc.                    
Fresh         
Supermarket  Secrets          
The Future of Food          
The World According to Monsanto
Fast Food Nation
Black Gold                 
Supersize Me                         
Slow Poisoning of India              
Our Daily Bread
Frankensteer                          

Earth + Environment + Building:

The Eleventh Hour       
Garbage Warrior
An Inconvenient Truth    
The Story of Stuff         
Flow 
Natural World                              
Manufactured Landscapes
Radiant City
Addicted to Plastic
Darwin’s Nightmare
Who Killed the Electric Car
Killing Seed 

Want More?

These great web sites feature free ducumentaries of all sorts, we love these sites:  

www.cultureunplugged.com
www.freedocumentaries.org
www:topdocumentaryfilms.com

More Knowledge 

FOOD 
www.ethicurean.com
www.cjly.net/deconstructingdinner
www.eatingwithSOLE.wordpress.com

SHELTER
www.dwell.com 
www.earthship.net

PERMACULTURE
www.permaculture.org.au 
www.planetfriendly.net/permaculture.html
www.vergepermaculture.ca
www.permacultureprinciples.com
www.pacificpermaculture.ca
LIVING GREEN www.treehugger.com www.davidsuzuki.org www.planetgreen.discovery.com www.norwex.com www.worldwater.org www.rocketstove.org U NEED TO KNOW www.thegreenguide.com www.cosmeticsdatabase.com www.adbusters.org www.lesstoxicguide.ca
www.greencalgary.org
www.ecologo.org