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.
Perhaps that Bing-Yahoo search deal is paying off. Even though Maps and Flickr aren't known to be part of the deal, Microsoft has connected its Bing Maps to the Flickr API in a unique way. It overlays geotagged Creative Commons photos over its current StreetSide imagery, as shown in the video embedded below.
Who ever said that institutions were loathe to change? Well call him up and let him know, the Library of Congress, with their Prints and Photographs API has finally taken the REST API plunge. If this government institution can do it, maybe you can convince the head of your IT department that APIs are a good idea too.
Popular image-sharing application mlkshk now has a mlkshk API for building mlkshk-enabled applications. The service provides a social image discovery and sharing technology, with a RESTful API allowing access to a user's mlkshk account, friends, favorites, and personal image collections also known as "shakes."