Oxford English Dictionary (OED)Traces the usage of words through 2.5 million quotations from a wide range of international English language sources.
Oxford ReferenceIncludes a variety of encyclopedias, handbooks, and dictionaries on many kinds of literature, and "Reader's Companions" to several prominent Victorian writers, including DIckens and Hardy. Search for authors, publications, and literary terms.
Very Short Introductions (Oxford)Includes short, informative reads on the Gothic and Literary Theory, as well as many other topics of interest.