PubMed (Free) PubMed comprises over 26 million citations for biomedical literature from MEDLINE, life science journals, and online books. PubMed citations and abstracts include the fields of biomedicine and health, covering portions of the life sciences, behavioral sciences, chemical sciences, and bioengineering. PubMed also provides access to additional relevant web sites and links to the other NCBI molecular biology resources. Academic Search Complete
Academic Search Complete is a scholarly, multidisciplinary database providing indexing and abstracts for over 10,000 publications, including monographs, reports, conference proceedings, and others. Also includes full-text access to over 5,000 journals. Offers coverage of many areas of academic study including: archaeology, area studies, astronomy, biology, chemistry, civil engineering, electrical engineering, ethnic & multicultural studies, food science & technology, general science, geography, geology, law, mathematics, mechanical engineering, music, physics, psychology, religion & theology, women's studies, and other fields.
Academic Search Premier This multi-disciplinary database provides full text for more than 4,600 journals, including full text for nearly 3,900 peer-reviewed titles. PDF backfiles to 1975 or further are available for well over one hundred journals, and searchable cited references are provided for more than 1,000 titles Web of Science (WOS)
Web of Science allows for concurrent searching of the following bibliographic databases: Science Citation Index, Social Sciences Citation Index and the Arts & Humanities Citation Index.