The Commercial Photographers Directory is a resource to help global art buyers, designers or anyone, find and commission specialist photographers.
http://www.commercialphotographersdir.com/
Photographers Index is the Internet Directory of Photographers Worldwide.
http://www.photographersindex.com/
Photographers Direct stock photography is a great source to buy stock images and professional photographers for picture research by image buyers looking for images online. Fair Trade Photography company
http://www.photographersdirect.com/
Photography Sites is a thematic photographer website directory which provides links to landscape, digital, nature, fine art, stock, professional wedding travel and nude photography
http://www.photographysites.com/
PhotoShelter is the leader in photography websites, selling photography and secure image archiving. Power your photography business. Sell stock photos and prints.
http://www.photoshelter.com/