present. ERIC contains over one million citations of research documents, journal articles, technical reports, program descriptions and evaluations, and curricular materials in the field of education. ERIC is sponsored by the U.S. Department of Education, Office of Educational Research and Improvement.

LexisNexis provides access to full-text information from over 5,600 sources, including national and regional newspapers, wire services, broadcast transcripts, international news, and non-English language sources; U.S. federal and state case law, codes, regulations, legal news, law reviews, and international legal information; and business news journals, company financial information, Securities and Exchange Commission filings and reports, and industry and market news. It is produced by Reed Elsevier, Inc.

MEDLINE is the U.S. National Library of Medicine’s premier bibliographic database containing citations from the mid-1960s to the present, and covering the fields of medicine, nursing, dentistry, veterinary medicine, the health-care system, and the preclinical sciences. PubMed provides online access to over 12 million MEDLINE citations. MEDLINE contains bibliographic citations and author abstracts from more than 4,600 biomedical journals published in the United States and 70 other countries. PubMed includes links to many sites providing full-text articles and other related resources. This database can be accessed at

PsycINFO is a bibliographic database of psychological literature with journal coverage from the 1800s to the present and book coverage from 1987 to the present. It contains more than 1,900,000 records including citations and summaries of journal articles, book chapters, books, and technical reports, as well as citations to dissertations, all in the field of psychology and psychological aspects of related disciplines. Journal coverage includes full-text article links to 42 American Psychological Association journals including peer-reviewed international journals. PsycINFO is produced by the American Psychological Association.

Sociological Abstracts indexes the international literature in sociology and related disciplines in the social and behavioral sciences from 1963 to the present. This bibliographic database contains citations (from 1963) and abstracts (only after 1974) of journal articles, dissertations, conference reports, books, book chapters, and reviews of books, films, and software. Approximately 1,700 journals and 900 other serials published in the United States and other countries in over 30 languages are screened yearly and added to the database bi-monthly. The Sociological Abstracts database contained approximately 600,000 records in 2003. A limited number of full-text references are available. Sociological Abstracts is prepared by Cambridge Scientific Abstracts.

TRIS (Transportation Research Information Services) is a bibliographic database on transportation information published from 1970 to the present. The database contains more than 535,000 records and includes journal articles, government reports, technical reports, books, conference proceedings and ongoing research. Major subjects include aviation, highways, maritime, railroads, and transit; design and construction; environmental issues; finance; human factors; materials; operations; planning; transportation and law enforcement; and safety. TRIS is produced and maintained by the Transportation Research Board at the National Academies.

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