Capitalizing - Provides a list of rules and examples. Includes sentences, quotations, proper nouns, names, titles, and scientific nomenclature.

Cliche Finder - A searchable database of overused expressions, with a fun feature creating a random list.

Common Errors in English - An explanation of common English usage errors and how to avoid making them.

404 Commonly Confused Words - Presents a list of words often used incorrectly in scientific and technical writing.

404 Deadwood Phrases - Offers a list of alternatives to common deadwood phrases to help make writing clearer.

Dictionary of English: Clichés, Pretentious Language, and Jargon - Presents a list of examples of three kinds of language to avoid, with an explanation of why they are not recommended.

Garbl's Editorial Style Manual - Searchable advice on abbreviations, capitalization, grammar, numbers, punctuation, spelling and word usage.
Meta Description: [ This free style guide can help answer your writing questions about abbreviations, capitalization, grammar, numbers, punctuation, spelling and word usage ]

Guide to Grammar and Writing - Features searchable index of grammatical rules, explanations, comments on style, and usage suggestions.
Meta Description: [ The Guide to Grammar and Writing contains scores of digital handouts on grammar and English usage, over 170 computer-graded quizzes, recommendations on writing -- from basic problems in subject-verb agreement and the use of articles to exercises in parallel structures and help with argumentative ... ]

Plain English Campaign - Working internationally to try to get public information written in plain English, instead of using gobbledygook, jargon and legalese. Includes examples, with annual awards for the worst offenders.
Meta Description: [ Plain English Campaign is an independent group fighting for plain English in public communication. We oppose gobbledygook, jargon and legalese. We fund ourselves through offering plain English editing, plain English training and the Crystal Mark Scheme. ]

Plain Language - A guide to help writers avoid confusing language and long-windedness. Can be viewed online or downloaded as a PDF.
Meta Description: [ Resources ]

Right Words - A series of short articles about grammar and punctuation, with light hearted examples of common mistakes.

The Elements of Style - William Strunk - Principal requirements of plain English style. Focuses on the rules of usage in literature, composition and grammar.
Meta Description: [ Strunk, William, Jr. 1918. The Elements of Style ]

The Sports Cliche List - A searchable collection of cliches used by American teams, fans, coaches and commentators, with humorous comments and sound clips.
Meta Description: [ A searchable collection of sports cliches, jargon, and lingo ]