The Journal Citation Reports on the Web is a unique multidisciplinary research tool that provides a systematic, objective way to determine the relative importance of journals within their subject categories. JCR(r) Web is available in two editions: the Science Edition covers over 6,100 leading international science journals from the ISI database. The Social Sciences Edition covers approximately 1,800 leading international social sciences journals from the ISI database. It includes what subject matter each journal covers (Scope Notes), what journals are related by citation or subject, what each journal issue contains and where the journal can be found. Coverage is 2004 to present. Please consult the library catalog for data available from previous years.