Introduction — Web of Science consists of five databases that contain information gathered from thousands of scholarly journals in all areas of research. They include:

• Science Citation Index Expanded™
• Social Sciences Citation Index^®
• Arts & Humanities Citation Index^®
• Index Chemicus^®
• Current Chemical Reactions^®

Citation Databases - The three citation databases contain the references cited by the authors of the articles. You can use these references to do cited reference searching. A cited reference search enables you to find articles that cite a previously published work. In addition, you can search the three databases by topic, author, source title, and address by using the Search and Advanced Search options.

Chemistry Search - The two chemistry databases allow you to create structure drawings to find chemical compounds and reactions. You can also search these databases for compound and reaction data. These databases require a separate subscription in addition to your subscription to Web of Science.