ljupco,
What is DS? Dreamstime?
I upload to the same sites as you with the addition Fotolia
www.fotolia.webhop.net I use it because you can see where your images are being used and it has an FTP upload. Its sales are a bit slow when compared to say shutterstock, but I like seeing where my images are being used.
I have a few images at some other sites that im "testing" I will report back when I have more info.
for info I have recently stopped submitting to Bigstockphoto and canstockphoto as its just not worth the effort.
Check the links section for more sites to check out
Doug