Bibliomania: Free online books and extensive, insightful study guides on the themes and characters of hundreds of British literary works.
Contemporary British Literature at Kansas State: Links to many twentieth-century author biographies and links to history and media resources
Literary Criticism at Drexel University: Full text literary criticism and historical context for a number of British authors
Luminarium: In-depth background information and resources on writers from four major periods of British literature: the Medieval Period, the Renaissance, the 17th Century, and the Restoration
Project Gutenberg: Online access to many books that are no longer in copyright including the full texts for many of the major novels, plays, and poems in British literature
W.W. Norton Anthology of English Literature: Background and summary information on all major periods of British literature