SUBJECTS: All Subjects (an Index to Journals in Online Databases)
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Unrestricted -- a public domain database

jake is produced by the Cushing/Whitney Medical Library at Yale University School of Medicine . It describes itself in these words:
"jake consists of a database containing information about e-resources (including online journals, databases, search interfaces, and textbooks) and how they relate to each other. These relationships include a functional but minimal amount of title authority control, listing of indexing and fulltext coverage, and resource evolution. Currently there are 195 databases with contents included in jake."