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Open Access (OA): Free online resources without cost or access barriers, like articles and textbooks from organizations such as MIT OpenCourseWare and Khan Academy.
Open Educational Resources (OER): Free-to-use and repurpose teaching and research materials, including textbooks from OpenStax and resources from LibreTexts.
ACM Digital Library
The index for every article ever published by the ACM (Association for Computing Machinery).
note: Trinity does not have full text for this database. Articles of interest may be requested by contacting library@trnty.edu
The index for every article ever published by the ACM (Association for Computing Machinery).
note: Trinity does not have full text for this database. Articles of interest may be requested by contacting library@trnty.edu
JSTOR 
An electronic repository of full-text journals in a variety of disciplines, JSTOR includes the full text of journals starting from the origin of their publication, but often does not have the most recent 2-5 years.
An electronic repository of full-text journals in a variety of disciplines, JSTOR includes the full text of journals starting from the origin of their publication, but often does not have the most recent 2-5 years.
ArXiv.org
An open access site for eprints in physics, mathematics, computer science, quantitative biology, quantitative finance, and statistics. Articles are available in pdf, html, and postscript formats.
An open access site for eprints in physics, mathematics, computer science, quantitative biology, quantitative finance, and statistics. Articles are available in pdf, html, and postscript formats.
Academic Search Complete
Index and full text of magazines, newspapers, reports, conference proceedings, and scholarly journals in a wide variety of disciplines.
Index and full text of magazines, newspapers, reports, conference proceedings, and scholarly journals in a wide variety of disciplines.
Google Scholar
Google Scholar provides a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: articles, theses, books, abstracts and court opinions, from academic publishers, professional societies, online repositories, universities and other web sites. And you can connect to the library for full text links to show up right there in Google!
Google Scholar provides a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: articles, theses, books, abstracts and court opinions, from academic publishers, professional societies, online repositories, universities and other web sites. And you can connect to the library for full text links to show up right there in Google!
Credo Reference 
Credo is an easy-to-use tool for starting research. Gather background information on your topic from hundreds of full-text general and subject-specific reference titles, as well as 500,000+ images and audio files and over 1,000 videos.
National Science Digital Library
The NSDL is a part of OER Commons, and contains an extensive library of resources in science, technology, engineering, and mathematics education.
The NSDL is a part of OER Commons, and contains an extensive library of resources in science, technology, engineering, and mathematics education.
PhET Interactive Simulations
The PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. PhET sims are based on extensive education research.
The PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. PhET sims are based on extensive education research.