More documentaries on:

http://www.linkbucks.com/JtAW (BBC)
http://www.linkbucks.com/JtA8 (documentary.net)
http://www.linkbucks.com/JtBV (National Geographic)
http://www.linkbucks.com/JtBv (Metacafe)
http://www.linkbucks.com/JtCE (Dailymotion)
http://www.linkbucks.com/JtCQ (Veoh)
http://www.linkbucks.com/JtCZ (Yahoo)
http://www.linkbucks.com/JtKH (Youtube)