The 500px Ruby wrapper by Chris Micacchi has been designed to interact easily with the API capabilities of search, retrieve, and upload photos. It aims to reuse HTTP connections. 500px is a community of photographers who can showcase their projects, discover new photography styles, and find royalty-free art.
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.
Flickr has added more real-time goodness to their photo API. Using a publish / subscribe (PubSub) system, developers can now receive real-time updates across millions of photos across Flickr friends, Flickr Commons, and by tags and geo-location using the Flickr Real-Time API.
With over 6700 mashups in our directory, it's good to go back and look at previously reviewed categories to see what is new. Last year we looked at mashups that let users share their photos. Today, we'll go back and look at the latest mashups using photo APIs including Flickr; still the king of photo APIs.