The Bronto Ruby SDK by Martin Gordon allows interaction with the SOAP API. Includes gem installation and usage with steps to specify the Api Key, create two contacts, create a list, create a new message & add content, and organize recipients for message delivery.
Thread Genius recently launched with the goal of mapping the world's visual taste. Thread Genius believes that web recommendations based on text fall short of capturing consumers' true taste. Its computer vision technology captures taste on visual input. Its API opens the service to others.