The Python Flickr API kit is a feature-rich Python interface to the Flickr API. It comes with a caching framework and remembers the user's authentication credentials automatically. It supports a variety of communication protocols, and offers different XML parsers to suit different platforms and preferences.
Creating a photograph that gives life to its subject is hard. Once you have done that, proofing and selling your photos should be easy. ShootProof is trying to simplify photography post-production. ShootProof is a web based service that allows photographers to upload, organize, share, and sell photography online. The read/write ShootProof API provides developers access to many of the site's features, including uploading new photos.
So, you're trying to share some files with someone who only has access to an old version of Word. Or maybe that Microsoft-hating friend of yours who only uses WordPerfect. Perhaps you want that old-school ebook to be an epub, rather than .lit. For any of these problems, there are desktop apps that work, of course. However, sometimes you want to be able to do that within a program. If so, Doxument and the beautiful Doxument API are what you need.