Language & Linguistics covers resources relating to theoretical, literary and historical linguistics as well as stylistics and philology.
Linguistics covers resources relating to all theoretical and applied aspects of linguistics, including phonetics, phonology, morphology, syntax, and semantics.  The category also includes resources dealing with language as a social phenomenon such as sociolinguistics, language acquisition and education, psycholinguistics, computational linguistics, corpus linguistics, semiotics and the relationship between memory and language.
Literature includes resources that cover comparative literature, literature of a specific genre, literary movement or era in literary history, and specialty literatures (such as children's or women's literature). Also included in this category are resources concerned with the literature of two or more cultures (for example, British and American).
Cultural studies covers resources concerned with the interdisciplinary, theoretical-critical study of modern cultural phenomena, practices and products in their sociopolitical, historical and geographical contexts.