The Digital Commons Network brings together free, full-text scholarly articles from hundreds of universities and colleges worldwide. Curated by university librarians and their supporting institutions, the Network includes a growing collection of peer-reviewed journal articles, book chapters, dissertations, working papers, conference proceedings, and other original scholarly work.
PLOS was founded in 2001 as a nonprofit Open Access publisher, innovator and advocacy organization with a mission to accelerate progress in science and medicine by leading a transformation in research communication.
This search engine, maintained by the National Institutes of Health, contains MANY free, fulltext articles. To access fulltext articles, click "free full text" on the lefthand menu of your search results.