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.
The Aviary Effects API that helps developers create their own Instagram recently made the API public and updated its developer portal. In addition, the company is offering a short-term developer contest, so you'll need to get going quickly.
Recently launched, Everlapse, is a free iOS app for sharing images and slideshows. Communicating with images is already a winning formula in the world of social networking, but Everlapse makes it a little more interesting by providing something that is a bit more stimulating than just static photos, but not quite as complicated as videos. In a nutshell, it allows users to create and contribute to clips which are made up of various photos and displayed as a slideshow. By providing the Everlapse API, the company also makes it possible for developers to integrate this functionality with other applications.
Careful what photos you tweet--and where you were when you snapped the shot. There's another site designed to warn you against the hazards of over-sharing. This time it's not related to active location-sharing, but instead accidental. The meta-data stored in your photos may be giving away where you live.