Guide to Free On-line Reference Sites 

Dictionaries, Encyclopedias, etc.


Acronyms & Abbreviations

 

  Almanacs

Associations and Organizations

  • Associations on the Net
    Maintained by the Internet Public Library, this resource is a guide to Web sites of prominent organizations and associations.
  • Scholarly Societies Project: "The Scholarly Societies Project offers free Internet access to directory information (including links to Web sites) for a selection of scholarly societies across the world.
  • Environmental Organization WebDirectory & National Environmental Directory
     
  • Biography & Obituaries

    Biographies

    Obits

    Books and Publishers

    Publishers

    Electronic Text Archives

    Commercial sites

    Calculators

    Calendars, Holidays, Timelines

    California

    Citation styles & Writing guides

    APA (American Psychological Association)

    CBE (Council of Biology Editors)

    Chicago

    Government

    Legal

    MLA (Modern Language Association)

    Plagiarism

    Writing guides

    College and Universities

     

    Colleges and Universities

    Free On-line Tutorials

    Company Information

    Databases

    Press Releases

    Consumer Health Information

    Country Information

    Currency

    Dictionaries and Thesauri

    General English-language dictionaries and thesauri

    Multi-Subject Dictionaries

    Science and medical dictionaries

    Selected foreign language dictionaries

    Encyclopedias

    General

    Humanities & Social Sciences

    Science

    Gazetteers

    A gazetteer is a geographical dictionary which lists place names alphabetically and provides information about location, size, and, occasionally, principal features.

    Grants, Scholarships & Financial Aid

    Federal Research Grants

    Financial Aid

    General Grant Resources

    Images

  • CineFiles
    Pacific Film Archive's film document image database
  • Corbis Image Collection
    over 10,000 still images, searchable by keyword and category and
  • Getty Images
    a gateway to 12 collections of still images, covering art reproductions and advertising; most pictures have a fee to download
  • Google Image Search
  • NASA Image Database
  • NOAA Photo Library - 16,000+ photograph images
  • Symbols.com
    Encyclopedia of graphic symbols.
  • Inventions, Patents & Copyright

    Inventions and Patents

    Copyright

    Libraries

    California Public Libraries

    Out-of-State Public Libraries (with large on-line database collections)

    UC & Cal State University Libraries (free to walk-in users)

    Digital Libraries by State

    Largest OverDrive.com Collections in North America by Size 2017 (in K titles)

    National Libraries

    Other library catalogs

    Maps/GIS

    Newspapers & Periodicals

    Database Vendor Title Lists

    Occupations

    Prizes and Awards

    General Awards

    Literary Awards

    Quotations

    Statistics

    Telephone Directories

    Traffic, Cars and Transportation

    Translators

    Travel

    Virus hoaxes and Breaches

     

    Weather

    Weights, measures and scientific constants

    Weights and measures

    Scientific constants, properties and data

    Zip, Postal and Search Codes