Scopus is the largest abstract and citation database of peer-reviewed literature: scientific journals, books and conference proceedings and features tools to track, analyze, and visualize research.
The ISI Web of Science provides seamless access to the Science Citation Expanded, Social Sciences Citation Index, and Arts & Humanities Citation Index. It enables users to search current and retrospective multidisciplinary information from approximately 8,500 of the most prestigious, high impact research journals in the world. ISI Web of Science also provides a unique search method, cited reference searching.