The MLA International Bibliography, produced by the Modern Language Association of America, consists of bibliographic records pertaining to literature, language, linguistics, and folklore, and includes coverage from 1963 to the present. The MLA International Bibliography provides access to scholarly research in over 3,000 journals and series. It also covers relevant monographs, working papers, proceedings, bibliographies, and other formats.

ProQuest One Literature contains 3 million literature citations from thousands of journals, monographs, dissertations, and more than 500,000 primary works – including rare and obscure texts, multiple versions, and non-traditional sources like comics, theatre performances, and author readings.

Enhanced by interpretive sources such as book reviews and criticism sourced from wider, interdisciplinary publications in the fields such as humanities and history, it provides diverse, global perspectives with sources from all over the world – Africa, Asia, Australia, Europe, and North and South America - the majority of which are in full-text.

The World Shakespeare Bibliography Online is a searchable electronic database consisting of the most comprehensive record of Shakespeare-related scholarship and theatrical productions published or produced worldwide from 1960 to the present.