I just found one of my photos from National Gardening Association being used online by a business marketing their flowers with my photo. I thought that our images were protected from this happening. On one hand, it's nice to see that my photo was considered good enough to market their product, but on the other hand, the company did not get my permission. Do we need to place copyright information on our images when we download them? What are my rights and how do I prevent this is the future?