MissEnglish.com

Infernal English: Usage Experts Change Their Minds Too
Anne H. Soukhanov, lexicographer, shows that grammatical rules are not necessarily set in concrete.
www.eeicommunications.com/

Alt.Usage.English FAQ
Newsgroup discussing English usage, maintained by Mark Israel.
www.faqs.org/

Survey of English Usage
University College (London) researchers focusing on grammar and linguistics, plus world-wide usage. Includes the "Internet Grammar of English".
www.ucl.ac.uk/

Online Technical Writing: Common Grammar, Usage, and Spelling Problems
Advice on common problems in the use of spellings, punctuation, and grammar.
www.io.com/

The American Heritage Book of English Usage. 1996
Practical and authoritative guide to contemporary English. Provides a detailed look at grammar, style, diction, word formation, gender, social groups, and scientific forms.
www.bartleby.com/

English Usage in the UK and USA
A light-hearted look at some differences between English as spoken on both sides of the Atlantic.
www.krysstal.com/

Heptune's Guide to Cheesy American English Usage
Collection of entertaining examples of contemporary American English colloquial usage.
www.heptune.com/

Guide to Terminology in Usage in the Field of Credentials Recognition and Mobility - English-French
Portability of credentials, education, degrees. Also in print. By the Canadian Information Centre for International Credentials (CICIC), 2003, 29 pages.
www.cicic.ca/

Lin Yutang's Chinese-English Dictionary of Modern Usage
Chinese University of Hong Kong’s Web edition based upon the1972 dictionary with over 40,000 entries. Indexed by radical, Pinyin, and English, and searchable by full text or head character. (Big5)
humanum.arts.cuhk.edu.hk/

Guide to Terminology in Usage in the Field of Credentials Recognition and Mobility - French-English
Portability of credentials, education, degrees. Also in print. By the Canadian Information Centre for International Credentials (CICIC), 2003, 37 pages.
www.cicic.ca/