Journal Citation Reports
Journal Citation Reports from Thomson Reuters provides analysis of the article publication and citation patters of major journals in the sciences and social sciences. Journals may be searched individually or by subject category, publisher or country of origin. Information available for each journal includes the total number of article published, total citations to articles from the journal, Impact Factor (ratio of number of citations to number of articles), Immediacy Index, Journal Half-Life, Impact Factor Trends and more. These indices are widely used in comparing and evaluating scholarly journal quality.