A multidisciplinary collection of databases. The Web of Science Core Collection, a subset of Web of Science, includes three citation and two conference proceedings indexes. The citation indexes can be searched for articles that cite a known author or work.
MedlinePlus contains authoritative health-related information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations in the United States.
The Internet Archive is a non-profit site that was founded to build an Internet library, with the purpose of offering permanent access for researchers, historians, and scholars to historical collections that exist in digital format.