Routledge encyclopedia of philosophy online This link opens in a new windowProvides access to the electronic version of the Routledge Encyclopedia of Philosophy. Articles can be browsed alphabetically or by philosophical themes, philosophies, historical periods, and religions. Full-text entries can be searched by keyword, contributor, or bibliography. Self-touted as "the definitive (philosophical reference) resource in the field " this is an important, reasonably current subject specialist philosophical encyclopedia. Of obvious relevance to students of philosophy, this work is also valuable for researchers in systematic theology or philosophical theology.