Science/Technology General All About Birds Online guide to birds and bird watching. Includes ID tips, sound and video for over 200 species. Animal Diversity Web Includes general information about all species of the animal kingdom. Extreme Science World records of science. The biggest, baddest and best and the science behind each. How Stuff Works Explains thousands of topics including science, technology, and electronics. GCF Learn Free: Computers Online tutorials for learning computer basics from the Goodwill Community Foundation. National Aeronautics and Space Administration NASA Current information and news about space missions, past and present. Includes images, video and interactive features. National Oceanic and Atmospheric Administration (NOAA) Information on the condition of the oceans and the atmosphere, climate and weather. Nature.com Online magazine covering a wide range of science and medical topics. Browse by topic or by publication. Periodic Table Periodic table with user-friendly data and facts about each of the elements. U.S. Geological Survey Information on the health of our ecosystems and natural resources. Wolfram MathWorld An extensive mathematics resource. World Wide Web Consortium Standards & Tutorials Information on web technology standards and tutorials for website development. News Live Science News articles and reviews on science topics in the natural and technological worlds. New Scientist Science news and articles on space, technology, health, economics and genetics from the New Scientist magazine. Popular Science Reporting on what's new and next in technology, science, gadgets, space, green tech, and more. SciCentral Reliable and timely free science information in the biosciences, health sciences, physics/chemistry, earth and space, and engineering. Science Daily Breaking news and articles in science and technology. Journals arXiv.org Open access collection of scholarly articles about physics, mathematics, computer science, quantitative biology and other topics maintained by Cornell University Library. Multidisciplinary Digital Publishing Institute (MDPI) Publishes scholarly, peer-reviewed open access journals. Science Direct in physical sciences and engineering, life sciences, health sciences and social sciences from Elsevier. Includes open access articles.