DoubleClick is a large advertising network specializing in online display ads. The company is a subsidiary of Google and provides an API for customers to manage their accounts. DoubleClick's API is SOAP-based and does not provide helper libraries, so developers need to interact directly with the service using XML. There are currently 19 separate WSDLs for describing the services and commands available, including procedures for logging users in and organizing advertising campaigns.
Facebook is kicking off a world tour for developers hacking on its Facebook API. There more security and extra endpoints coming to DoubleClick API. Plus: another voice recognition service, plenty more Twitter chatter and 19 new APIs.
Today Facebook announced 60 approved partners for its Open Graph, which allows them to add actions to the Facebook Timeline. Amazon also added a new API to its cloud offerings, a homegrown NoSQL database. That was among the 13 new APIs on a busy day in APIs.