The journal, Medieval Philosophy and Theology, which began in 1991 at Notre Dame University but has since moved to Cornell University, has changed from being a printed journal to an on-line only journal. Here is the journal's general description of itself:
Medieval Philosophy and Theology is a semi-annual, peer-reviewed journal devoted to the publication of original articles in all areas of medieval philosophy, including logic and natural science, and in medieval theology, including Christian, Jewish, and Islamic. Coverage extends from the Patristic period through the Neo-Scholasticism of the seventeenth century.
…[b]eginning with volume 12 the journal will be publishing new issues exclusively [on-line], exclusively in digital format. All back issues of the journal are also accessible…in digital format.
The finely-wrought website has a search feature, and currently sports all the articles from volumes 1–6 in PDF format, with the hope that volumes 7–11 will be available soon.
The search feature on the site is very good. A quick search of the term “Aquinas” in the title-field yielded 12 hits of articles on Aquinas. I also found out, somewhat to my surprize, that full-text searches are possible, too. This surprized me because the PDF formats of many of the articles are the image-version of the format (the larger version), which is basically a graphic file of an already-printed document. Someone has been working very hard, here.