I do not have personal experience with every person/site/service recommended here. However, I do believe them all to be useful and trustworthy.
There will be a * next to everything I have personally experienced.
100 Best Websites for Writers (2017 edition)
Great Goodreads Groups
Great Facebook Groups
Editing and Proofreading
Website and Blog Design
Blog Tour Hosting
Consultants for Authors/Bloggers
Please feel free to contact me and request that your service/business be added to the list. I’m always looking to build up my resources page!