The C# (.NET) library for Windows is for use with the Bloomberg API. The Bloomberg API provides free, unrestricted access to raw financial data and is part of their Open Market Data Initiative. The library is offered under a "free-use" license, which allows unrestricted access to the interface's header file, documentation, and programming examples. Extensive documentation, including code examples, is available in the Developer Documentation and at the API website.
The Lenderlink API system is now freely available to second charge mortgage packagers. Lenderlink aims to be a single platform to connect mortgage packagers to lenders. The Lenderlink API could do away with the disjointed single API per lender integrations that currently exist in the market.
The defacto standard for online surveys, SurveyMonkey, just added phone polling to its services. What's remarkable about the addition is that it came via an acquisition. The company now owns Precision Polling, a site for creating and executing polls over the phone.