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| Online encyclopedias of astronomy, math, physics, scientific biographies, and scientific books, with many equations and formulas. |
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| Summaries of new developments within areas of science of key papers, authors, institutions, nations and journals. Categorized by type of media. |
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| Google PR |
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| Information on expeditions worldwide. Also offers placement service, funding, news, and lecture series. Some features require registration. |
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| Google PR |
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| Collection of information provided by U.S. government agencies, including research and development results. |
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| Google PR |
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| Welcome to Fix-8 Directory, the free, human edited, SEO friendly directory. |
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| Google PR |
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| Lists of academic journals by subject, keyword and alphabetical order. |
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| Google PR |
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| Selection of pages about space, chemistry, biotechnology, sociology and general topics. |
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| Google PR |
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| A guide to science links and technology news on the internet. |
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| Google PR |
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| Searchable database for testing and calibration laboratory facilities by country and type of experiments. |
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| Google PR |
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| Comprehensive site including education, natural history, conservation, environment, ecology, evolution, geology, paleontology, and systematics. |
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