I have to admit a few years ago I thought these guys were a bit of a cowboy start-up without much chance of success, wrong was I! Dreamstime was a little later on the scene (2004) than some of the other major microstock sites but has now made up any ground that might have lost them, adding 2 million images to their collection in the 12 months preceding Nov 2008.
I now receive a quite good income (but not exceptional I admit), with downloads of most of my photos, including those that have not sold on other sites. Recently sales have dropped off a little, mostly likely due to my somewhat poor acceptance rate at dreamstime, I'm not certain that acceptance rate (the ratio of your upload photos that are accepted compared to those rejected) affects the frequency that your photos appear in the search results of image buyers, but something has lead to a drop in my overall sales despite regular new uploads. It might be your acceptance rate over all time or just that of the past few months. The statistics section of the site give you a view of everything you might need to know. Be careful what you upload to dreamstime.
Commission
Dreamstime sell basic images at a very reasonable price which I'm sure has contributed to their success. As a bonus to contributors the cost of more popular images increases in tiers as the number of downloads increases. Dreamstime host around the same number of images as istockphoto (sorry to keep mentioning istock, but it is, or was, the yardstick by which other sites were measured, the match at the moment is pretty close!).
Commission rates on dreamstime are tiered according to how popular an image is. Popular images earn 50% commission reducing down to 30% for less popular 'Level 1' images. Despite the change from the previous 50% flat rate this still offers one of the best commission rates for microstock photographers whose photos sell frequently. Exclusive photos from non-exclusive photographers attract an extra 3-5%. Exclusive photographers are always rewarded 60% royalty on sales and $0.20 for each new accepted image.
Conclusion
I recommend this site to upload your whole image portfolio to, it should be included in your top four. They offer an excellent commission level, multiple language and European sales office base provides additional spread to your image portfolio.

Dreamstime
Marie Appert (not verified) on Thu, 06/19/2008 - 18:02Dreamstime teams up with MySpace
gary718 (not verified) on Tue, 10/21/2008 - 21:18From Dreamstime Website:
http://www.dreamstime.com/thread_11224
Our efforts to bring you more buyers have paid off once again. We have just started a cooperation with social-networking website MySpace. With about 235.000.000 members, MySpace is one of the biggest worldwide websites of all times. Using a Dreamstime image selection, MySpace members will soon be able to easily create and send real printed greeting cards to their MySpace friends and family's home addresses. This service is for personal and individual use only. Each greeting card will be of the same high quality as greeting cards you would buy from a shop; in full colour on greeting card paper. MySpace will actively promote this service to its members from the beginning of December in Europe. This is a pre-launch announcement. The official announcement for Myspace is scheduled in around one month from now.
Myspace Postcards
Steve Gibson on Thu, 10/23/2008 - 00:07Sounds good, 6-7c per card is pretty good compared to a one off royalty of a couple of hundred that is common in the postcard and calendar industries (after spending days chasing a sale!).
This should boost sales of landscapes, abstract and perhaps travel (local landmarks etc) which are normally poorer sellers compared to 'stock concepts'.
and your credit on the printed card - bonus!
Fingers crossed for some sales.
Site Administrator
Terrible inspectors
Anonymous (not verified) on Fri, 01/29/2010 - 16:06We all started somewhere
Steve Gibson on Sat, 01/30/2010 - 00:00(noted that the above was posted with suspicious/possibly false email address)
I guess I'd probably be thanking red for his offers of help (no matter how well hung he is :). The saturation issue is a bugbear of mine too, with almost all agencies. BUT it's not the agencies fault, the buyers buy them, sad but true - the agencies just supply the demand. It's taken me years to get over "leaving saturation to the end user". The ready to drop in images are the ones that sell, "cheap and cheerful".
An innocent angel loses it's wings each someone buys an HDR photo.