Even as an exclusive I had the right to upload editorial. I've had images up on Alamy for the better part of a year now with no success so I'm broadening my horizons as I've been shooting a lot of concerts lately (visit my blog
www.haywardphoto.blogspot.com to see some if you are interested.)
That being said, I have started to upload at other sites. Shutterstock was nice enough to let me re-open my account. I've been pretty happy with the immediate results. I'm also very impressed with their uploading process. Intuitive and user friendly. I'm finding some good results at Dreamstime and I've got a handful of pics up on 123rf too. I'm finding 123rf a bit confusing and need to sit down and spend some real focused time to figure it out.
I gave I-Stock a chance but the upload process is the most frustrating thing I have encountered and their rejection results are exasperating. A very unpleasant process that I don't have the time or patience to waste on (at least for now).
Mat