What is it? Think of Wikipedia but with pictures.
According to the website, the companies mission is to:
Fotopedia is breathing new life into photos by building a photo encyclopedia that lets photographers and photo enthusiasts collaborate and enrich images to be useful for the whole world wide web.
Articles are created and modified by all the users. You can also embed the widget into your own blog. DO you want an example?
Check out this fotopedia of the bald eagle.