Gravatar is an attempt to allow users to have one globally recognized avatar. The service, around for several years, allows a user can set an image as an avatar and have it recognized on a variety of sites. Later, users can change an avatar once and have it change on every Gravatar-enabled site that they use. Though the service is somewhat well known, what is not is its robust API for developers to integrate the Gravatar service into their own sites.
Ten more APIs have been added to the ProgrammableWeb directory in categories including eCommerce, Auto, and Marketing. Highlights include the Sonos API for home sound automation and the Arcentry API for architectural diagram creation. Here's a look at what is new for developers.