The following resources can help you connect with professional writers and editors in a variety of fields:
Editorial Freelancers Association (EFA)
The Editorial Freelancers Association offers a Member Directory that helps you find freelancers by name, location, skills, and specialties. The EFA also has an active Job List.
The American Copy Editors Society (ACES)
The American Copy Editors Society has a searchable Editors for Hire directory and a Job Bank where you can post freelance or in-house writing and editing jobs.
Independent Writers of Chicago (IWOC)
The Independent Writers of Chicago provides a list of Member Websites and a Post a Job page. In addition, IWOC offers a Find a Writer tool, which is searchable by expertise and specialties.