Each search engine listed below is known for being consistent, accurate and reliable.
Wiki Q&A combined with free online dictionary, thesaurus, and encyclopedias. Ask questions, get answers.
The preeminent Internet publisher of literature, reference and verse, providing students, researchers, and the intellectually curious with unlimited access to books and information on the web free of charge.
CrossRef connects users to primary research content, by enabling publishers to work collectively. It is the citation linking backbone for all scholarly information in electronic form and functions as a sort of digital switchboard.
Provides a search of scholarly literature across many disciplines and sources, including theses, books, abstracts and articles.
INFOMINE is a virtual library of Internet resources relevant to faculty, students, and research staff which contains useful Internet resources such as databases, electronic journals, electronic books, bulletin boards, mailing lists, online library card catalogs, articles, directories of researchers, and many other types of information.
Librarian's Internet Index is a website and weekly newsletter serving the nation and the world. Topics include current events and issues, holidays and seasons, helpful tools for information users, human interest, and more. It has over 20,000 entries, also maintained by librarians and organized into 14 main topics and nearly 300 related topics.
Find library and reference resources including top dictionaries, encyclopedias, newspapers, maps, quotations and much more.
The Online Library of books, journals, articles, encyclopedias and more.
Refdesk is a free and family friendly web site that indexes and reviews quality, credible, and current web-based reference resources.
Scirus is a comprehensive scientific research tool on the web. With over 350 million scientific items indexed, it allows researchers to search for not only journal content but also scientists' homepages, courseware, pre-print server material, patents and institutional repository and website information.