National Geographic Society - NatureWatch the wonders of the world and all nature has to offer on National Geographic's video page.
PBS NOVA - NatureWatch dozens of full-length NOVA science programs about nature.
PBS NatureCheck out this collection of nature videos from PBS.
Animal PlanetWatch Animal Planet video clip highlights.
ScienceStage - EnvironmentOnline portal with videos to increase your knowledge of the environment.
Discovery ChannelWatch great nature highlight videos from the Discovery Channel.
LiveScience - NatureLarge video library of science and animal videos.
FORA.tvWatch interesting videos on the latest issues in nature and the environment.
Earth-TouchGet an up close look at wildlife and the natural wonders they inhabit.
ScienceHack - NatureInformative video search engine where all nature videos are screened for accuracy by scientists
ScienceDaily - NatureGreat place to watch the latest science and nature videos.
Science Channel - NaturePart of the Discovery Channel network of sites with videos about extreme weather.
ScienCentral - EnvironmentWatch the latest video news clips on science and the environment.
Technology Review - EnergyMIT associated media site with news and information about energy and emerging technologies.