The Yellow Pages Ruby SDK aims to reduce implementation time. Additional to the official SDK, developer @ianbishop contributed to create a community SDK available on GitHub. Documentation includes Places API and Deals API.
Microsoft has released a significantly enhanced version of their Live Search API. Live Search API 2.0 offers increased flexibility in terms of API protocols (REST/XML and JSON are now offered, in addition to the original SOAP interface), new tools, sample code, and complete documentation.