Paul Hawkin talking about the 2 million organizations around the world working for environmental justice and sustainability (*at the time of this video he had only found 250,000 groups. He later revised that to 2 million)

http://www.youtube.com/watch?v=N1fiubmOqH4

The miniature earth—what the world would be like if it were just a village

http://www.youtube.com/watch?v=rvTFKpIaQhM&eurl=http://www.bestofyoutube.com/

Micro-economic Enterprise in Africa

http://www.ted.com/index.php/talks/jacqueline_novogratz_on_an_escape_from_poverty.html

An astounding display of Data Visualization

http://www.ted.com/index.php/talks/hans_rosling_reveals_new_insights_on_poverty.html

Regular Videos on Sustainability Projects and Programs

http://www.youtube.com/user/sustainabletoday

Greening the Bronx: The Power of One

http://www.ted.com/index.php/talks/majora_carter_s_tale_of_urban_renewal.html