I maintain a small portfolio of several hundred images on 500px, which I uploaded couple of years back. Since then I largely forgot about it, because sales were zero. However, several days back, all of a sudden, I got two sales for whooping $12 and $2. What is happening? Have they finally found some clients? Why price is so low? I thought they were selling $49 minimum per image, was it right? Did I miss something? I tried to search forum, but have not found any recent news about 500px.