Flickraw is a Ruby library that provides an interface to the Flickr API. Data returned through the interface is presented in a simple and intuitive manner. Because the library's methods are fetched from Flickr when it loads, the library is always up-to-date.
It seems that photo applications, be it mobile or web, are making their presence felt via small but innovative ways in which they bring photographs together. Facebook is the largest photo sharing site available today and if you can somehow tap into that to create an interesting social experience, the results are bound to be dramatic, as Pixable’s Photofeed application has managed to do.
Skybiometry's cloud-based face detection API serves as a drop-in replacement for face.com's API. This REST-based API can be used in combination with almost any programming language, making it possible to integrate with any device that has internet connectivity.