PBS Nature:Great video on Humpback Whales
http://www.pbs.org/wnet/nature/humpback/
UNESCO: United Nations Educational, Scientific and Cultural Organization
http://portal.unesco.org/en/ev.php-URL_ID=29008&URL_DO=DO_TOPIC&URL_SECTION=201.html
UNEP: United Nations Environment Programme
http://www.unep.org/