There are a number of good sources for writers:
Writerfind is a marketplace for writing & communications professionals
Rewriting, Editing and Ghostwriting Services
The freelancers listed here can help with rewriting. The category
includes editors and ghostwriters.
Writers located in the U.S. and Canada
Assignments can also be posted to the mailing list.
Another good resource is FreelanceWriting.com
?FreelancePortfolios.com lets you find freelance talent that is
perfect for your project. FreelancePortfolios.com lets you search by
discipline, specialty, location, experience, etc. You can evaluate
freelancers based on their experience, content, and samples. You also
can create your own filters so when a new portfolio is added that
matches your search terms, FreelancePortfolios.com will automatically
notify you via e-mail. To set up filters, register for an account.
To search for freelance talent, BROWSE through the current listings
Post a job
The Write Jobs
The Write Jobs, a specialty job board and career resource for
journalism, media, publishing and writing professionals.
Post a job at The Write Jobs.
Use Elance to get free quotes for your writing project
How it works
Get free quotes from report writers and editors for your project within hours!
Guru.com's free service quickly connects you with thousands of top
report writers and editors
I hope the information provided is helpful!