Marketing _ It's best to index your post with Google. Enter into the search bar "fetch as Google" or "Google.com/addurl" and this will bring you to the Search .Console. Once there, enter your new post title and click on Submit to Index. Do this each time you complete and publish or repurpose a post. Post to your Social Media _ The ones I've used are Google+, Facebook, Pinterest, LinkedIn, Twitter, and Instagram. Publish your Post _ When ready click on the publish button to see the published post on your website. Email Broadcast _ If you have an email list let everybody know that you've completed a new post that they might like to share with their friends. Get Site Comments _ Ask the readers to leave a comment and always respond to your viewer's comments. This is called "audience engagement" and is very important to the viewer and the search engines too. Well, I think that's enough on answering the question "what is a writing checklist". It not only answers the question but is in itself a writing checklist. It's not a bad idea to print this out and keep it close by to make sure that you remember each one and discipline self to be consistent with every post.
These things should all be done before writing the article or post.