The Catherwood Library has been building and maintaining a collection of union literature since it was founded in 1946. Among the key resources of this collection are our extensive holdings of labor union periodicals. In addition to the current and historic titles that can be found in our library, many labor union periodicals are now available on the web. This bibliography lists Cornell University Library location information for current U.S. labor union periodicals as well as Internet sites for periodicals in this class.