Check out Science and Technology Resources on the Internet
A Field of Green: Renewable Energy Research on the Web at http://www.istl.org/10-summer/internet.html, a refereed web site by by Dawn Lowe-Wincentsen, Oregon Institute of Technology.
From the site: “This webliography provides an introductory guide to renewable energy news sources, journals, databases, and scholarly research. This compilation first provides links to renewable energy general resources, then focuses on specific types of renewable energy, in particular biofuels, biomass, geothermal, photovoltaic, and wind power. Different aspects of each of these are also taken into account, from how to engineer to industry profiles.”