There are many new sites I am giving a credit of hope but... When shall I stop? After having 500, 1000, more images uploaded and 0 or few views. I am not talking about sales even. I usually stop uploading for some time, then resume after couple months. I am giving them same images that are downloaded on most of top 6. They must not have enough customers to generate any traffic or they only sell images from most famous contributors.

I'm finding I just don't have the interest or stamina to keep adding sites. 

The one exception I am making to my "no new sites" policy is Veer Marketplace.  But then they are not exactly brand new, being that Veer and their parent Corbis are well established names in traditional stock. 

As for every little startup that comes along - sorry, but no thanks.