Stockimo is free to use, but you only get 20% of each sale. It is an iPhone app, so the photos are taken and uploaded from your mobby (No Android version, unfortunately)The photos are rated by Stockimo, and only images that they consider good enough are put onto the site.
Sometimes it is very difficult to know exactly what they are looking for! Sometimes I have had a photo that I thought was good rejected, so I upload it again at a later date and it gets accepted!
I've got a few hundred images on there, but not one has sold. But hey, you've got to be in it to win it and all that and its free
Cash in on your creativity! Download the Stockimo mobile phone photo app. Upload your best images and we'll sell them on Alamy, the world's largest stock photo website site for picture buyers.
www.stockimo.com