OSDE.INFO : http://www.osde.info
We're doing the flickr api and machine tags to let you attribute a composite photo to all of its Creative Commons Attribution Sharealike (by-sa.cc) licenced elements !
Here's what we've done so far !
http://osde-info.vox.com/library/post/flickr-api-using-phpflickr-class.html
It's not a lot !
So URGENT HELP NEEDED since there are only five hours left !