The New Princeton Encyclopedia of Poetry and PoeticsThe Princeton Handbook of Multi-cultural PoetriesMLA International BibliographyColumbia Granger's World of Poetry Online
English Poetry, 600-1900Faber Poetry Library, 1900- Literature Online Text Search (select Poetry)Corpus of Middle English Prose and VerseEarly English Books OnlineWomen Writers Online/Renaissance Women Online Twentieth-Century English Poetry