Canadian, British, and American Spelling
Editing Your Fiction to Sell: Macro and Micro Editing Tips
Filter Words and Phrases It’s Best to Avoid in Writing Fiction
Grammar Cheat Sheet — From ProWritingAid
Passive and Active Voice: Watch the video, read the post, and make sure you scroll to the end and download the PDF.
The Perfect Grammar Cheat Sheet
Title Capitalization Tool — Includes tabs so you can select the styleguide you’re using.
Commas
Commas get their own section because they drive everyone crazy and need singling out.
Comma: an excellent article on how to use the comma.
Extended rules for using commas.