General & Popular Science

See also recommended sites in these disciplines:
Biological & Biomedical Sciences, Chemistry, Computer Science, Engineering, Health Sciences, Mathematics, Physics and Astronomy, Psychology, Weather

Science News

• EurekAlert! American Association for the Advancement of Science
• The National Academies "Advisors to the Nation on Science, Engineering, and Medicine"
• Nature Science Update - daily science news from the Nature news service
• Science@NASA- Headline News - searchable, online newsletter about all aspects of NASA research
• Science/Nature BBC News
• ScienceDaily Magazine - latest discoveries and research from astrophysics to zoology
• Scientific American News Briefs - two items daily
• SciTechDaily - features links to breaking news, science and technology publications

Science Dictionaries

• Acronym Finder
• The Laws List definitions of laws, rules & principles, primarily physics and astronomy
• MedBioWorld: Online Medical & Bioscience Dictionaries, glossaries and terminologies - links to online dictionaries in specific fields
• SYMBOLS.com -- encyclopedia of Western Signs and ideograms

Science Data, Constants, Properties

• Astronomical Data - from U.S. Naval Observatory, sunrise & set, moon phases & more
• Equation Sheet.com
• Fundamental Physical Constants from NIST
• Periodic Table of the Elements
• US Naval Observatory Master Clock time

Scientific Units, Measures

• Calulators On-Line Center part of Martindale's 'The Reference Desk'
• Dictionary of Units - conversion factors to change various measures to SI units
• Knovel Science & Engineering Units Converter
• Measure 4 Measure
  "A collection of interactive sites on the Web that estimate, calculate, evaluate, translate, etc."
• MegaConverter 2
• WWW Unit Converter

Virtual Museums and Explore Zones

• AE Mystery Spot Access Excellence
• American Museum of Natural History
  Includes Science Bulletins - "Current research about the natural world."
• Ask a Scientist! - searchable archive of more than 1000 questions/answers; hosted by the Cornell Center for Materials Research
• The Exploratorium:  museum of science, art and human perception
• How Stuff Works! - answers for how everyday things work, from car engines to refrigerators
• IEEE Virtual Museum  - exhibits on electricity, electronics, computing, etc. in historical context
     IEEE = Institute of Electrical & Electronics Engineers
• MadSciNet - nearly 800 scientists provide answers to questions, archives of previous answers
• Science Animations - Movies and Interactive Tutorial Links
• Science Museum of the National Academy of Sciences
• Science Tracer Bullets Online - Library of Congress
  research guides on science topics; include overviews, resources and search strategies
• Scitalks: Smart People on cool topics
  videos on many fields of science
• Serendip - forum and set of resources to explore and support intellectual and social change
• webExpeditions.net - "current scientific, educational or adventure expeditions"
• The Why Files - "science behind the news"

Science and Society

• AAAS Science and Policy Programs - American Association for the Advancement of Science
• Faith and Reason - Site of PBS documentary on conflict between science and religion
• ingenious - "This site brings together images and viewpoints to create insights into SCIENCE and CULTURE" - National Museum of Science & Industry, London
• On Being A Scientist: Responsible Conduct In Research - report from National Academy of Sciences
• Online Ethics Center for Engineering and Science - useful for addressing ethically significant issues in the practice of engineering and science
• Psci-com Intute (UK)
  "A free catalogue of high quality Internet resources, covering public engagement with science, science communication and the impact of science on society... [Includes] a bibliographic database called Psci-comlit of references to books, reports, journal and newspaper articles..."

Biography, History of Science

• 4000 Years of Women in Science
• African Americans Do Science - directory of biographical sites
• Bibliographical Memoirs - National Academy of Sciences
  biographies of deceased members of the Academy
• Catalog of the Scientific Community in the 16th and 17th Centuries - vital facts about 631 individuals and their contributions to science.
• echo — exploring and collecting history online — science, technology, and industry Center for History and New Media, George Mason U.
• Jesuits and the Sciences 1554-1995 Loyola U. Chicago Libraries
  Includes images, profiles of scientists, a bibliography, and an index of the scientists
• National Inventors Hall of Fame
• Nobelprize.org  Biographical data on winners, educational materials, games, etc.
• Timelines Intute: Science, Engineering and Technology

Science Megasites and Gateways

• Martindale's 'The Reference Desk'
• NSDL National Science Digital Library "the Nation's online library for education and research in Science, Technology, Engineering, Mathematics"
• Science Open Directory Project
• Science Librarians' Index to the Internet
• Scirus Science search engine
• Scitopia: Integrating Trusted Science and Technology Research
  search more than 3 million documents, patents and government data from 15 science & technology societies
• Selected Internet Sites in Science and Technology
  Science Reference Services of the Library of Congress
• WorldWideScience.org - "The Global Science Gateway"

Databases, Bibliographies & Full text sources

• Earth's Largest Free Full-Text Science Archives - sites providing access to full text resources
• Science.gov - "includes web sites and databases of technical reports, journal articles, conference proceedings, and other published materials"
• Scientific Commons - searchable index of more than 16 million freely-available scientific articles, preprints, papers, and other digital resources from about 900 institutional repositories and self-archives; international in scope
• SciTechResources.gov - Gateway to U.S. Government Science and Technology Resources

Search Aids and Bibliographic Tips

• Search the Internet
  Want more? Here you'll find a collection of search engines, indexes and directories.
• Internet Resources Citation Guides
  Learn how to cite information found on the Net in a bibliography.
• Evaluating Information Sources
• Writer's Handbook
  Produced by the Writing Center at UW-Madison. Contains tips on style, grammar, punctuation, and citing sources.
• Research and Documentation Online
  Information on finding and documenting sources in the humanities, social sciences, history, and the sciences.