The World Factbook provides information on the history, people, government, economy, energy, geography, communications, transportation, military, and transnational issues for 267 world entities.
DOAJ is a unique and extensive index of diverse open access journals from around the world.
Find searches that correlate with real-world data.
Browse an index of thousands of books, from popular titles to old, to find pages that include your search terms. Once you find the book you are looking for, you can look through pages, find online reviews and learn where you can get a hard copy.
A tool that gathers scholarly literature on the web. From one place, you have the ability to hunt for peer-reviewed papers, theses, books, abstracts and articles from academic publishers, professional societies, universities and other scholarly organizations.
Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 345 billion archived web pages.
The search engine is safe, intelligent and timesaving—and it draws from trusted resources from universities, government and established non-commercial sites.
Justia provides free case law, codes, regulations and legal information for lawyers, business, students and consumers world wide.
The Library of Congress is the largest library in the world, with millions of books, recordings, photographs, newspapers, maps and manuscripts in its collections. The Library is the main research arm of the U.S. Congress and the home of the U.S. Copyright Office.
A service of the U.S. National Library of Medicine, Medline Plus offers a powerful search tool and even a dictionary for finding trusted, carefully chosen health information.
A multimedia judicial archive of the Supreme Court of the United States.
A nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world.
PubMed comprises more than 28 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
This search engine pulls from over one billion web pages, encyclopedias, journals and books. It focuses on scientific and academic results—meaning more results will come from .edu or .org sites, as well as online encyclopedias. It also has an option to search documents directly—providing easy access to PDFs of academic papers.
Discover full text scholarly articles submitted by researchers across several academic fields.
Science.gov searches over 60 databases and over 2,200 scientific websites to provide users with access to more than 200 million pages of authoritative federal science information including research and development results.
This search engine, designed especially for students, enables you to determine the most relevant results from a list of credible resources. This tool also makes it much easier to locate primary sources. Spam sites and other irrelevant results are excluded.
A self-described “computational knowledge engine,” simply type in a topic or question you may be interested in, such as, “What is the function of the pancreas?” and the answer will show up without making you scroll through pages of results. This is especially handy for those in need of math help.
“The Global Science Gateway,” operated by the Office of Scientific and Technical Information—a branch of the Office of Science within the U.S. Department of Energy. The site utilizes databases from over 70 countries. When you type a query, it searches databases from all over the world and will display both English and translated results from related journals and academic resources.