Users of The Philosopher’s Index might be interested in a new competing bibliographic tool, the Philosophy Research Index, a venture of the Philosophy Documentation Center. The PRI aims to cover articles in 360 journals, as well as dissertations, books, and reviews in philosophy, from the 15th century (!) to the present. Journals include The Thomist, Aquinas, Divus Thomas, the ACPQ, and even some series no longer in print. Individuals can sign up for a 1-week free trial to the database here.