*Bartleby.com -- Rich collection of reference sources, language reference, & literary works, including: Bartlett's Familiar Quotations, Roget's Thesaurus, Strunk's Elements of Style, Fowler's English, Emily Post, etc.
Babel Fish -- Translates text and web pages to & from 13 languages
Google Language Tools -- Searches & translates text or web pages to & from 10 languages
Shodouka -- Service that enables display of websites with Japanese language characters, even for PCs that are not set up to display the Japanese alphabet