| Visual_Elements__Erbium Image, physical information, key isotopes, and ionisation energies. |
| Litz-Wire_com Expansive information on high frequency Litz wire, profiled cables and extrusions. |
| MathNet/MPRESS Mathematics preprint search engine. Includes some European servers not covered elsewhere. |
| Small_Business_Innovation_Research_(SBIR) Grant program for small business concerns to engage in Research/Research and Development that has the potential for commercialization. |
| 3D_Solar_System_Simulator A Java applet that shows an interactive 3D representation of the planets and satellites of the solar system. |
| Frequently_Asked_Questions_About_Quasars Part of an FAQ site that evolved from an exchange of e-mail messages with middle school science students. |
| WebElements__Gold Extensive information on history, uses, occurrence, compounds, and properties. |
| Microbiology_101/102 Dr. Hurlbert's site includes an enormous amount of information for people interested in learning about Microbiology. |
| Integral_tables Covers basic rules, polynomials, logarithmic, exponential, hyperbolic and examples of definite integrals. |
| How_Stuff_Works__Analog_and_Digital_Recording Illustrated guide to analog and digital recording. Includes a sound sample. |
| Megalops_atlanticus__Tarpon Photographs and information on this species, including its taxonomy, description, habitat, distribution, life history, population biology, physical tolerances, community ecology and special status. |
| Southwest_NativeTrout Southwest trout have been decimated by a century of livestock grazing, water diversions, logging, road construction, dam-building, and stocking of exotic trout. |
| Wisconsin_Teacher_Enhancement_Program A national professional development program at the University of Wisconsin-Madison for K-14 science and health educators. Most courses are related to biology. |
| Heratech Provides environmental testing and abatement services in New Jersey, including radon, lead and water testing. |
| GEO-SLOPE_International_Ltd_ CAD software for geotechnical and geo-environmental modelling |
| Convergent_Engineering Focuses on biomedical research using neural networks. |
| International_Institute_for_Applied_Systems_Analysis_Population_and_Society About IIASA studies on projection of population trends, demographic change, and the strains placed on resources and society, both globally and within nations. |
| Lafont,_Yves University of Marseille II - Linear logic, lambda calculus, proof theory, term rewriting. Lafont invented the theory of interaction nets, an elegant theory of graph rewriting. |
| Maya_Ruins Photographs and descriptions by Phil Konstantin. Includes Chichen Itza, Kabah, Uxmal, Labna, Xlapak, Sayil, Palenque, Xpujil, Becan and Museo de la Cultura Maya. |
| USA Shortcuts to Departments of Physics, Engineering, and Mathematics. |