See also:
Guardian Unlimited - Style Guide
guardian.co.uk
The British newspaper's guide to word usage, grammar and punctuation, edited by David Marsh and Nikki Marshall. Includes 1928 edition in pdf format.
Word News
wordnews.info
Efforts have been made to provide some of the best thoughts, ancient and modern, that are particularly appealing for our time and to promote a greater appreciation for the English language.
Braintique: The Natural Way to Write
braintique.com
A process and system for helping people become better writers. Includes exercises, examples, and information about descriptive writing and metaphors.
Society for the Preservation of English Language and Literature
spellorg.com
Bimonthly publication, SPELL/Binder, contains articles on grammar, usage, word origins, and other subjects of interest to language lovers.
Suite 101: Workplace Communications
suite101.com
Archive of articles covering writing and speaking skills, with emphasis on clear communication, basic design, communicating with international and multicultural audiences.
Jargon Finder
comnetwork.org
The use and abuse of jargon. From The Edna McConnell Clark Foundation.
Verbivore
verbivore.com
Richard Lederer's page, with contact information and a handful of his language-loving articles.
Urban Dictionary
urbandictionary.com
A veritable cornucopia of streetwise lingo, posted and defined by its readers.
Pseudo Dictionary
pseudodictionary.com
The dictionary for words that wouldn't make it into dictionaries.
The Word Nerds
thewordnerds.libsyn.com
A weekly podcast about words, language, and why we say the things we do.
Good Grammar, Good Style
protrainco.com
Articles and answers to frequently asked questions about grammar, mechanics, and style. Links and bibliography.
Frequently Asked Questions about English
alexcommunications.com
Answers to common questions about usage, style, grammar and punctuation.
WordWizard
wordwizard.com
Portal for word lovers. Learn about word meanings, slang, quotations, insults, and famous authors. Wordwizard offers a round trip across the English language.
A.Word.ADay
wordsmith.org
The music and magic of words. This is the website for the mailing list A.Word.A.Day (AWAD), which sends a vocabulary word and its definition to the subscribers every day.
Glossarist.com
glossarist.com
A searchable directory of thousands of glossaries and topical dictionaries containing terms and definitions on hundreds of subjects.
Plain Language Action Network
plainlanguage.gov
Promoting clearer communication between the public and government. This site has resources for writers to attain that goal.
English Guides
sites.google.com
A guide to English grammar. Also links to punctuation, spelling, vocabulary, and writing guides.
Macedon's Taberna: The Craft of Writing
macedon.k2free.com
Commentary on various technical aspects of writing: the nuts and bolts of narrative.
Ewriting
e-writing.info
Easy to learn electronic writing style that will speed up email and online chatroom discussions.
Findaphrase.com
findaphrase.com
Free phrase database to help journalists, copywriters and content editors search common phrases.