We had an idea for starting a ecards service and were looking into the possibility of populating our site using photo/artwork APIs.  Due to legal reasons, Flikr probably won't work, although I've started to scour the web for other options.Basically we just need two functions the user should be able to browse the site's collection and choose a picture we should be able to recall and render a specific picture on our site.  From there we should have no problem building our application.  The main obstacle is that we're lacking content at the moment.I haven't been able to find too many examples of this being done, so I was wondering if anyone here might know people who have done something similar to what we're trying to do, or know of any leads that might be able to help us out.  Suggestions for other APIs that are out there, or forums/communities that might be able to point us in the right direction are also welcome.
What are some good Photo and Artwork APIs?
api;api design