Rules of Thumb Database

Rules of Thumb.Org. ‘A rule of thumb is a homemade recipe for making a guess. It is an easy-to-remember guide that falls somewhere between a mathematical formula and a shot in the dark. A farmer, for in­stance, knows to plant his corn when oak leaves are the size of squirrels’ ears. An economics profes­sor knows […]

Science Accelerator: Searching U.S. Department of Energy’s (DOE) Databases

Science Accelerator. ‘The Science Accelerator allows you to search via a single query across important collections of the U.S. Department of Energy’s (DOE’s) scientific and technical information. Such collections present the results of research and development (R&D) projects and programs, descriptions of R&D projects under way or recently completed, and major R&D accomplishments. The Science […]

More on Federated Science Search: ‘ is a global science gateway — accelerating scientific discovery and progress through a multilateral partnership to enable federated searching of national and international scientific databases. Subsequent versions of will offer access to additional sources as well as enhanced features. was developed and is maintained by the Office of Scientific and Technical […] Searching High-Quality Scholarly Work and Patents ‘The federated vertical search portal was created through the imagination and collaboration of 15 leading science and technology societies. Searching for a better way to help researchers quickly get to the quality content they need, these society publishers developed a gateway to the research most cited in scholarly work and patents. searches […]

GeoNames: A Free Editable Geographical Database

GeoNames. ‘The geographical database is available for download free of charge under a creative commons attribution license. It contains over eight million geographical names and consists of 6.5 million unique features whereof 2.2 million populated places and 1.8 million alternate names. All features are categorized into one out of nine feature classes and further […]