In addition to using the Library Catalog, you can also use general, non-disciplinary specific databases to find a variety of periodical literature.
Excellent starting point. Multidisciplinary article database offers access to more than 16,000 journals, magazines, and newspapers, including over 15,000 peer-reviewed journals.
A digital archive of over 1,100 important scholarly journals. All issues of each journal are included in full-text except for the most recent 2-to-5 years, based on JSTOR's agreement with the journal's publisher.
While the Library Catalog, Academic Search Complete, and JSTOR allow you to cast a wide net when searching, the below disciplinary/topical databases allow you to deeply investigate the literature within a field of study.
ABSEES contains over 55,000 records (1990-date) representing North American scholarship on East-Central and Eastern Europe and the former Soviet Union, including citations for journal articles, books, book chapters, book reviews, dissertations, and government publications. ABSEES is updated monthly.
Comprehensive coverage of sociology and its sub-disciplines, with very good coverage of related areas of study, especially politics. In addition to full-text journals, it contains informative abstracts for core coverage journals dating as far back as 1895.