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The Office: Recyclops
Woodsy Owl 1977 TV public service announcement
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Earth Day Pictures: 20 Stunning Shots of Earth From Space
Earth Day Pictures: Quirky Ways to Mark the Day
History & Info
Earth Day Network:
Earth Day: The History of A Movement
UN:
International Mother Earth Day
NatGeo Education:
Earth Day
Earth Day: When It Is, How It Began, What to Do
PBS:
What Does Earth Day Mean Today?
NatGeo:
Earth Day: Conservationist or Communist? Behind Google's Doodle
Cool Stuff
NatGeo
Awesome Earth Quiz