Find common writing errors

Lists of words commonly confused

• Paul Brians, Common Errors in English (an excellent online collection of commonly confused words and phrases; includes link to book version and calendar)
• AskOxford, Commonly Confused Words (a short online list of commonly confused words)
• Literally, A Web Log (an English grammar blog tracking abuse of the word "literally")
• William Strunk Jr, The Elements of Style (1918), Chapter V, "Words and Expressions Commonly Misused" (a short list of commonly confused words and phrases from the first edition of this classic work)
• Write Better English, Word quizzes (short quizzes on commonly misused phrases)