Please submit sites that have substantial information about math in general that doesn''t fall into any of the math subcategories listed.

Math or mathematics is the study of numbers and variables representing numbers to solve everyday problems, learn about the world around us or to be an exercise in logical reasoning.

Some applications of math are in the areas of finance, physics, sociology, computer programming, fractal music and geometric art.

Methods and techniques that are useful in a broad range of scientific and engineering applications include statistical methods, analytical chemistry, crystallography, microscopy and microanalysis, geographic information systems, and electronic data acquisition. Because many methods and techniques are themselves important fields or subfields of science addressed elsewhere in the Open Directory, this category contains numerous cross-links to other categories.

There are separate categories for News in many of the different branches of science.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.

Current news and features about science and technology.

There are separate categories for Organizations in many of the different branches of science.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.

Organizations are groups of people working together towards a common goal. This category is for organizations that do not themselves conduct scientific research but aim to spread information about such research. They organize meetings, publish journals and provide research grants for scientists in the field. The category includes scientific and engineering societies and associations, professional societies, museums of science and technology and government science establishments.

This category includes sites about the basic laws of nature, such as the laws of motion, electromagnetism and atomic interactions.

Webpages that focus more on mathematics as it applies to physics should be placed in the Mathematical Physics subcategory.

Webpages that focus on the interdisciplinary topic of combining physics, chemistry, thermodynamics and quantum mechanics should be placed in Physical Chemistry

Submit sites about the study of the nature of space and astral bodies in Astrophysics. But, webpages that offer general statistics and data about the universe should be submitted to Astronomy.

"Physics is the study and application of the fundamental laws of nature, including the laws of motion, gravity, electromagnetism, heat, and microscopic interactions. These laws govern the behavior of objects at all scales, from the smallest subatomic particles to the entire observable universe. In between, physicists study nuclear reactions, the interactions of atoms with light, properties of solids, chaotic dynamics of fluids, and the evolution of stars and galaxies, among many other applications."

If this doesn't tickle your fancy, there is always the quote from Rutherford: "In science, there is only physics; all the rest is stamp collecting."

Please find the scientific subcategory most relevant for your site. Most publications are listed under subject-specific publications categories that are accessible here via links. URLs listed in this category are primarily for broad-scope journals, magazines, and publishers.

Please do not submit URLs for individual articles and books to this category.

Scientific publications include traditional print journals typically intended for professional audiences, printed magazines typically intended for a popular audience, books, and a wide variety of electronic publications. Most publications are listed under subject-specific publications categories that are accessible here via links. URLs listed in this category are primarily for broad-scope journals, magazines, and publishers.

Please submit general science reference materials to this category, such as periodic tables and metric conversion.

Those webpages that cover a single topic area of science, should be listed within that science category.

Includes reference webpages and tools for general science or those that would apply to several different disciplines. Some examples would be lists of constants, measurement conversions, online calculators, formula tables, exact time, properties of materials, and technical standards.

There are separate categories for many of the different branches of science.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.

Most research activities will either occur in academic departments or in research institutes (which may either be in universities or external). Both of these are included in this category.

This category deals with the interaction of science and culture, civilizations, and standard of living.

Please attend to the following guidelines to ensure your site is submitted to the correct category so it can be most quickly added to the directory:

• Sites not in the English language should be submitted to the proper language category under World
• Sites for companies offering scientific services should be submitted to the appropriate Business category, for instance if you offer clinical research services for the pharmaceutical industry, use Business/Biotechnology_and_Pharmaceuticals/Contract_Research_Organizations
• Sites focused on a particular scientific discipline should be submitted to the appropriate subcategory under Science, for instance if the topic is educational activities in Astronomy, use Science/Astronomy/Education. Similarly, topics in one of the Social Sciences, such as archeology, psychology and sociology, should be submitted in the most appropriate subcategory in Social Science.

Sites about public policy may be appropriate here; current issues may be more appropriately placed in Society/Issues/Science_and_Technology.

"Science in Society" focuses on the interaction of science and technology with the broader society. Potential topics include (but are not limited to) policy about science and technology, ethics in science and technology, representation of various societal groups in the scientific endeavor, applications of science in law, speculations about future science and technology, and the misuse (or proper use) of science in commerce and public discourse.

Submit only search engines that specialize in general science topics.

Other search engines should be submitted to the correct subcat of the Search Engines category.

Other science websites should be submitted to the appropriate Science category subtopic.

This category lists engines which search databases of scientific information and literature.