When you search for green energy research information at the DOE Green Energy [2] portal, you will now receive results that allow you to explore more narrow concepts, related concepts, or even broader concepts than your original scientific query (see press release [3]). With its new semantic search technology, DOE Green Energy affords you the use of the familiar and simple search box -- yet still provides the benefits of an advanced search technology to help get to the information you need. In addition, the DOE Green Energy site recently deployed an auto-complete feature. This means that as you type your query, such as "ethanol," into the search box, you will immediately see a list of associated concepts, i.e., ethanol fuel, cellulosic ethanol, direct methanol fuel cell, etc. from which to choose. DOE Green Energy results come from valuable sources of DOE research and development (R&D) information. These sources include DOE databases of technical reports [4] and patents [5], filtered for green energy related subjects such as solar, hydro, geothermal, and wind energy, energy storage, tidal and wave power, direct energy conversion, nuclear fuel cycle, biomass and synthetic fuels, and much more.