Microsoft OneNote is a notebook tool to take and organize notes. The OneNote service API allows developers to integrate and manipulate OneNote user data in their own applications on a variety of platforms and devices. This code sample gives users examples of how to use OneNote API with Windows iOS.
FinancialForce.com, focused on building cloud based business applications on the Force.com platform, has released an API for its accounting application (i.e. The FinancialForce Accounting API). The API gives access to the entire suite of accounting tools available through the accounting platform (e.g. cash management, reporting and dashboards, ordering and billing, etc.). Although FinancialForce.com built the application with Force.com, and the target audience began with Force.com developers, the application has been integrated with many platforms and APIs (e.g. Google Apps, Basecamp, Facebook, PayPal, etc.)