Dreamstime
Buy and Sell Images at Dreamstime
D r e a m s t i m e

Sell Your Digital Images: Dreamstime pays $0.50 to $1.00 per basic download to the photographer (50%) and has a pretty good upload system. 

Buy Digital Images: Dreamstime charges more for photos that have been download 100 times or more, and again if they’ve been downloaded 500 times or more. They have also recently implemented a system where print and web images are separate purchases. You can currently download images for less than $1.

 

 
Extended licenses at Dreamstime
Dreamstime recently announced four new extended licenses which could increase earnings significantly: Increase Max Copies, Web Usage, Print Usage, and Sell the Rights. Each of these extends the ways in which the image can be used and pays a much higher premium. If you sell the rights to the image, you no longer control it and cannot sell it elsewhere, so use it with caution--noting that you can make a large chunk of change using this option (you can set your own price). Further details are below.
 
Dreamstime offers editorial license

Dreamstime now offers an editorial license in addition to their other licenses:

Editorial License:

The editorial section provides news worthy images reflecting events from social, cultural and political scenes. Images downloaded under the Editorial section of our site, as well as images downloaded with our Royalty Free license can be used within editorial context as long as the current terms are met. Sensitive usage restrictions also apply.

The high-resolution images that you download with the editorial license may be used to illustrate truthful articles or broadcasts appearing in magazines, newspapers or any other editorial context, in either printed or electronic media. Buying the high-resolution image (purchasing the license) does not transfer the copyright. You may not claim that the image is your own and you may not sell, license for use, or in any way distribute the image.

Special ethical considerations apply to editorial usage. When using or submitting editorial images, you are solely responsible for any claims related to or arising from any visual adjustments of the images. Standard manipulation such as cropping the image or regular brightness/contrast corrections are allowed only if doing this will not affect the visual message of the image. We reserve the right to refuse any image submission that we consider as not marketable.