• Britannica 

    No password required!

    Britannica School Iink
    A great resource for articles, facts, and information about a world of subjects.

    Britannica Escolar

    The encyclopedia in Spanish - A great resource for articles, facts, and information about a world of subjects written in Spanish. 

    ProQuest Databases

    These require a username and password when you are off campus.  Login info is available in the library or by emailing aburt@petk12.org using your school email.

    A database to help you analyze current events.



    Cultural information on countries around the world.

    Pro Quest CultureGram Link


    General database of periodical (magazine) and digital media content with guidance for student researchers.

    ProQuest eLibrary


    Database of millions of articles from more than 10,000 full-text scholarly journals.

    ProQuest Central



    No password required! 

    This site contains peer-reviewed journals that have been peer-reviewed in a different way; papers are accepted as long as the methodology is good. Reviewing comes from readers who respond to the article. Check for media coverage and compare your original article to the popular article written from it, as well as the number of citations, views, and responses. 

    PLOS one



  • Sonoma County Library

    These all require a Sonoma County Public Library card number and PIN to access.  Don't have a card yet? 

    Click here to get an instant ecard.

    A to Z Maps 

    Contains thousands of political, physical, outline, environmental, antique, and scientific maps. Adults/Teens (12-17)

    A to Z the USA 

    Encyclopedia of US state and country data. Adults/Teens (12-17) 

    A to Z World Culture 

    Covers society and culture for 175 countries. Adults/Teens (12-17)

    Biography in Context 

    Comprehensive database of biographical information on people from throughout history, around the world, and across all disciplines and subject areas. Adults/School-Age Children (5-12)/Teens (12-17)

    Discover and Go 

    Discover and Go is a nationally recognized museum pass program that provides library cardholders with free and discounted tickets to local museums and cultural institutions.Adults, School-Age Children (5-17))/Teens (13-17)

    Earth Science Reference 

    Browse Salem Press earth science reference books: Earth Materials & Resources; Earth's Weather, Water, & Atmosphere; Earth's Surface & History; and Physics & Chemistry of the Earth (also available in print at the Central Library). Adults/Teens (12-17)

    Enciclopedia Estudiantil Hallazgos

    Spanish-language reference work designed with younger readers in mind. School-Age Children (5-12))/Teens (13-17)/Adults

    Learning Express Library 

    LearningExpress Library features nearly 1,000 online tutorials, practice tests, and eBooks to help patrons of all ages improve the skills required for academic and career success. Adults/Teens (12-17)


    Lynda for Libraries provides Sonoma County Library cardholders access to the complete Lynda.com collection of more than 3,000 courses and 150,000 award-winning video tutorials taught by industry experts covering a variety of topic and skill areas including office productivity applications, databases, spreadsheets, Photoshop, multimedia production, business savvy, specialized applications, organizational skills and Adobe Acrobat. Adults/Teens (12-17) 

    Mango Languages 

    Mango Languages is a major language learning service. The service is available to library card holders online and for mobile devices with the Mango app. Adults/Teens (12-17)

    Newspapers from Proquest  

    Full text of news articles from the Wall Street Journal, The New York Times, The Press Democrat, and many other regional and national newspapers. Adults/Teens (12-17)

    ProQuest Newspapers 

    Full text of news articles from the Wall Street Journal, The New York Times, The Press Democrat, and many other regional and national newspapers. Adults/Teens (12-17)


    Free online access to Tutor.com’s 3,600+ expert tutors for one-to-one, real-time tutoring in over 40 subjects and test preparation areas. & Spanish language materials too! School-Age Children (5-12)/Teens/Adults

    Wildlife Encyclopedia 

    Includes descriptive articles, photos, and maps of habitat areas of animals around the world. School-Age Children (5-12)/Teens (12-17)

    World Book Discover 

    Offers engaging reference resources for students reading below grade level because of language or learning difficulties, with content and tools specifically developed for these students. The collection includes reference articles, text-to-speech capabilities, learning and life skills activities, research tools, multimedia, and interactive video to draw students into curriculum-related topics and subjects relevant to older students. Adults/School-Age Children (5-12)/Teens (12-17)

    World Book Encyclopedia 

    Updated daily, the online version of the World Book includes all articles from the printed encyclopedia, plus thousands more. A dictionary is also available. Adults/School-Age Children (5-12)/Teens (12-17)


    Borrow digital magazines for free through your library.  Over 167 titles are available. Adults/Teens (12-17)