BusinessWeek has written an article about the investment opportunities available int he Alternative Energy marketplace.

Renewable energy is booming. The use of solar power has been growing by more than 30% a year and, except for a hiccup in 2004 -- when Congress delayed renewing a tax credit -- so has wind power. Ethanol is heading for record production levels. And there's no end in sight, given high oil and gas prices, an increasing number of government mandates and incentives, and the first real steps toward tackling global warming. Clean Edge Inc., a research and strategy consultant, predicts that the total clean-energy market will grow to $92 billion by 2013, about seven times its current size of $13 billion. "The investment community is starting to see real opportunities," says Ron Pernick, co-founder of Clean Edge. [ more ]

This article mentions many of the stocks followed on this website.