The quest for renewable energy sources is on and you've probably heard about the major players: solar, wind, hydrogen, ethanol. But who is writing about some other innovative sources you may not know about?

Read about using manure for energy at Julie’s Fresh Air.

Learn about using oranges and algae as resources at Heather Yaxley.

Are termites the solution? Find out at Cocktail Party Physics.

BlogHer Green and Eco-conscious Editor mipmup also blogs at mipmup.

Photo credit: Morguefile by Jim Munnelly