The Independent Book Publishers Association has a free PDF of the Industry Standards Checklist for a Professionally Published Book.
NY Book Editors have a sweet article on getting your manuscript ready for submitting to an editor. Don’t Submit Your Manuscript Until You’ve Read This Post.
This is an amazing resource subtitled: include/ empower/ respect ! There are links to wonderful articles that describe the need for and the strides we are making in the publishing industry to be more inclusive. I have a hard time not spending hours on this site, just reading article after article. Here is an example where the Associated Press has changed their policy on hyphenating American heritage labels.
Grammar Girl (aka Mignon Fogarty) is the author of numerous books as well as articles for her website -“Quick and Dirty Tips” on grammar and punctuation and things of that nature. She is my go-to-gal for refreshing my memory on issues like when to use a reflexive pronoun, or how to punctuate participial phrases. Having trouble remembering when to use ‘lay’ vs ‘lie’? She can help! I’ve got her books too. (But it's NOT because I am a book junkie! I bought them in case the internet goes down and I have an urgent need to conjugate irregular verbs!) She’s brilliant.
Grammar Book is a fantastic website reference that is based on The Blue Book of Grammar and Punctuation by Jane Straus. It is beautifully and simply organized for searching out specifics on … grammar and punctuation rules! (Yes! You guessed that one, huh? You are amazing!) It is a great tool and resource that is good to keep on speed dial, as it were. Or an open tab on your laptop.
The Editor’s Blog is a great resource for Writers as well as Editors. Editor and writer Beth Hill has great, practical advice (like how proof-reading can pay off - tricks and tips for proofing your own work or others') and lots of good resource links to other good sites, webinars, and E-zines (Writer’s Digest and Grammar Girl, to name two). I have newly discovered this website and am eager to devour as much as I can of her excellent advice and guidance. Her "Punctuation with Dialogue" is fantastic and seems extremely comprehensive to me, especially when combined with the Discussion in the Comments below the article. One little gem I discovered is her article and the discussion on how to write "Inner Dialogue" and it even touches on telepathy in sci-fi novels. Another FANTASTIC article is on commas and coordinating conjunctions and the purpose of good punctuation, generally: No Comma Necessary—Coordinating Conjunctions Don’t Always Need Commas. This article contains some of the best advice I've ever found for the treatment/ nuances of comma usage that are practically impossible to find! And again, tons of useful material in the Comments section!
LitWeb is the online resource and supplement for the W.W. Norton Introduction to Literature textbooks. They have quizzes and workshops that you need the code from the textbook to access, but they also have a free Glossary of terms that is excellent and many many articles related to writing and literature. I have only recently discovered this awesome resource and plan on regularly ingesting the articles and keeping the glossary at my fingertips. They also have Reading Group Discussion Guides; if you are a member of a Book Club you might want to check those out.
I discovered Frank McKinley’s website when I was looking for justification/ arguments for why every writer needs an editor. ;) He also has a Thriving Writers show on YouTube that looks very informative, although I haven’t investigated those yet. (I find YouTube to be a rabbit hole that once I fall in, I end up with hours of my life sucked away unless I am VERY VERY careful – like setting a timer!) And his Blog has heaps of interesting and motivating topics for writers of all kinds, including strategies for getting published. Highly recommend you explore the smorgasbord of offerings in this website.
I am not a writer but I love learning about the craft so that I can better assist my authors. The Write Practice seems like a good resource for writers. One blog post I especially appreciated was about Point of View.
The Writer’s Handbook (crazy creative, huh?) published by The University of Wisconsin-Madison (not my alma mater, I just stumbled upon this one and was extremely impressed) has a Writing Center that has put together a great little resource which addresses many issues relevant to … writers! 12 Common Errors was a good one. They also have great guidance for Academic and Professional writing. It’s geared toward their students, but hey, maybe you are wanting to update your resume or something. I think most universities have some sort of resource like this.
Laurel Garver, author and editor, has a blog (Laurel's Leaves) where I found a fantastic explanation to authors for why they need critique and beta readers and how to get the most out of both. For real - any writer who wants to improve their craft should get as much feedback and as many eyes on their story as possible. Laurel says it more eloquently. :) Laurel also has written some books, one of which provides 'Evocative Prompts for Fiction Writers.'
Andrea (Andi) Cumbo-Floyd is a writer, developmental editor, speaker, workshop facilitator, and writing coach. Awesome, classy lady! Her website is also a good resource for things, including her “12 Ways to Improve Your Novel or Memoir BEFORE Anyone Else Sees It.” She writes a blog and has written and published a number of books. She also has developed a whole writer’s community of support.
Word-of-the-Day mailing from Merriam-Webster online dictionary – way better than one of those tear-off calendars (I heard somewhere that there is such a thing as Word of the Day toilet paper?! I must say, as a lover of words, the symbolism is distressing.) This newsletter also links to their web page where there are quizzes to test your word power and other cool things. It's fun if you are competitive and geeky about vocabulary.
Romance Refined is the website of Rachel Daven Spinner, who is a freelance editor. She has a very helpful download on using Track Changes with an editor and another on how to create Manuscript/Series Style Sheets - a tool I think any author would do well to utilize.
The Punctuation Guide is a phenomenal tool/reference that is easy to use and great for refreshing your memory about how and when to use semi colons, em dashes (you’ve got to familiarize yourself with these little beauties!), quotation marks, etc. etc. etc. It also has information on Manuals of Style, Top Ten Tips (And we all love those! Admit it!), British vs American English, and more.
The Daily Writing Tips are cool. Some better than others of course, but I can almost always learn something from them. I’ve been a subscriber for years.
Common Editing and Writing Problems by Dorothy Mitstifer – a pdf list of good things and things to avoid. Handy little reference for writers to use in self editing their work.