The following links will take you to indexes for articles as well as background information in literature and related resources. You might want to start out with an online reference source first and then go into more detail with the online journals articles.
JSTOR offers a high-quality, interdisciplinary archive to support scholarship and teaching. It includes archives of leading academic journals across the humanities, social sciences, and sciences, as well as select monographs and other materials valuable for academic work. These collections contain over journal tiles dating back to its inception through the last three to five years. Links to more current issues of a journal title are provided where available. Artstor images are included now as well.
Artstor is now part of JSTOR. The old interface is being retired, but you can search JSTOR for the same content.