NOTE: The U.S. National Library of Medicine also offers a free version of Medline called PubMed. This offers access to all parts of MEDLINE but lacks some of the functions made available through the McGill only version.
There is a list of journals by subject category. Given the age of JSTOR's content, it is a useful resource for finding both primary and secondary material. Searches can be done on the full text of articles, thus uncovering otherwise elusive material.