Use this discovery tool to search most of the University Libraries' collections, including books, journal articles, newspapers, dissertations, music, and video recordings. (Ex Libris)
Look up the meaning of words in this updated, online version of the Oxford English Dictionary. It's particularly useful when researching the etymology of a word. (Oxford)
An Ask.com service, includes dictionary, thesaurus and translation features. This is a highly commercialized website -- so while the dictionary and thesaurus options are useful -- use good judgement when selecting any of the other options,
Search for background information on a variety of topics published in the Oxford series of reference books. Find information on topics in the arts, sciences, history, language and literature, and more. (Oxford)