This LibGuide provides a list with active links to assist in finding open access (free) journals.
Other good sources for journals, newspapers, and more available for free on the Internet:
Google Scholar - A search engine for scholarly publications from peer-reviewed journals, professional societies, books, theses, and other sources.
Highwire Press - Offers free articles in biological, physical and social sciences and medicine. The site includes a search engine. Highwire has also put together a list of links to other large archives of scientific resources (highwire.stanford.edu/lists/largest.dtl)
Public Library of Science - A nonprofit scientific/medical organization making articles available for free.
BioMed Central - Publishes a number of journals that are available as open access, including Environmental Health and Journal of Biology. Others are available free to registered users.
OAIster - Indexes over three million digitized resources worldwide and can be limited to text, images, audio, or video files.
The Directory of Open Access Journals - Includes articles from more that 700 titles from around the world. Ethics in Science and Environmental Politics, Fishery Bulletin, Journal of Construction Education, and Biopolicy are just a few of the titles included.
Scitopia - A federated (“one-stop-shopping”) search portal for publications of a number of professional societies in the areas of science and technology. Over three million documents, including patents and government publications, can be found here.
Scientific Journals International - A Publisher of open-access journals in science, technology, health, education, and social sciences. Links to online issues are included.
Encyclopedia of Life - A collaborative initiative to collect information on every species on earth. Contributing organizations include Smithsonian Institution, Royal Botanic Garden, and American Museum of Natural History.
Internet Public Library - “Information you can trust” with subject indexes, newspapers, magazines, special collections, and more.
WorldCat - Sometimes called the catalog of catalogs, WorldCat lets you search through library holdings from thousands of libraries around the world. Search for everything from books, articles, CDs, DVDs, audio files, and more. This is a great resource for locating material that can be obtained through Interlibrary Loan if it is not available on the Internet.
WolframAlpha - A Wolfram Research resource, this "computational knowledge engine" can answer a wide variety of questions and provide information on various topics. Subjects covered include mathematics, statistics and data analysis, chemistry, engineering, and earth sciences among many more.