Research Search Engines

Search Engines to Access

Research and Academic Content


BASE is one of the world's most voluminous search engines especially for academic web resources. BASE provides more than 150 million documents from more than 7,000 sources. You can access the full texts of about 60% of the indexed documents for free (Open Access). BASE is operated by Bielefeld University Library.

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.

Internet Archive is a non-profit library of millions of free books, movies, software, music, webpages and more. Use their Wayback Machine to explore and save over 400 billion webpages from the past. See this article for Secrets of the Wayback Machine.

Judy Records is the largest search engine of United States court cases on the Internet.

Science Open provides open and free access to over 61 million research articles In over 25, 000 journals, plus allows you to share your research.

Smithsonian Astrophysical Observatory/NASA Astrophysics Data System provides access to more than 14.2 million records covering publications in Astronomy and Astrophysics, Physics, and the arXiv e-prints.