Below is a subset of the many subject focused databases available through the Penn Libraries. Use the Database & Article Index facet in Franklin Catalog to find more.
These brief Penn Libraries videostreams give tactics for locating fulltext - covering paywalled ejournal pages, in-text citations, and DOIs and URLs. Some of the videostreams show a superseded version of the Penn Libraries catalog and its Articles+ integration, but the tactics will work with the new Penn Libraries catalog and its Articles+ integration. NOTE! You may need to use your PennKey to sign into the Penn Libraries mediaspace.