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Barack Obama: Investing in Clean Energy
Category: Environment
Difficulty: Medium
Presentations: Marketing
Category: Business
The President's Message to the Iranian P...
Category: News & Polit...
"Self-Aware" Robots
Category: Technology
Planet 51
Category: Movies & TV
Giant Kites Tap Wind Energy
Up Movie - 'First Aid'
TED: Electric Motorcycle
Going Green: Oysters
Obama Addresses World's Muslims
Michelle Obama's Plea For Education
Ted Kennedy: A Right Not a Privilege
