NationBuilder, a community organization system, has announced the launch of the brand new NationBuilder platform and the release of the brand new NationBuilder API which helps developers to create community organizing-driven applications.
Stereomood is a streaming music service that gives recommendations. To start, it uses a list of moods, each of which have an associated playlist. While playing songs, users can like or ban songs, much like Last.fm or Pandora. The Stereomood API allows full access to the site's functionality to developers, allowing developers to make fully usable clients on any platform.