Smithsonian Institution
Lemelson Center: Thomas Edison's Inventive Life
This site is a complete resource for learning about Edison's life, his inventions, and electricity. If you like experimenting, there are instructions included for how to make your own light bulb. Good photos.
Other
Think Green: Think Waste Management
Find out how waste can be recycled and what you can do to aid recycling efforts in your community. With complete overviews of the types of materials that can be recycled: e-waste, paper and cardboard, metals, glass, plastics,...