Flickr Virtual Path Provider
I just put together a VPP for using Flickr photosets and photos in the EPiServer filemanager. The photos are cached locally. Uploading (among other things) is not yet supported.
This little experiment of mine should be considered an.. uhm, well, an experiment. Use at your own risk.
Installation is easy, just add the VPP to your virtualPath section. You need to insert your own API key and User Id in the URL.
The VPP will display photosets as directories.
Binaries and full source code is located at http://flickrvpp.codeplex.com/