Journal Citation Reports
Allows you to evaluate and compare scholarly journals in all areas of the sciences and social sciences. Results can be used to determine which journals are the most important and influential in their respective disciplines. Leads to analytical reports comparing the number of articles published in more than 8,000 academic journals, together with the number of times those articles have been cited by other scholars. Each report provides a variety of unique measurements for each journal, including its Impact Factor, Immediacy Index, Cited Half-Life, and Citing Half-Life. 2000-present; updated annually.