The Energy Information Administration (EIA) of the US Department of Energy maintains the Energy Glossary Web site. The glossary provides energy terms and definitions as used in EIA reports, on EIA survey forms, and by the energy industry. Users browse the terms and acronyms alphabetically to locate the specific word they're interested in. Examples of these include Adjusted Electricity, Demonstrated Reserve Base, Merchant Oxygenate Plants, Total Liquid Hydrocarbon Reserves, and Wholesale Wheeling, among many others. Although the glossary is not searchable, it does a good job of providing an easy-to-use resource that's quite informative.