TrueSample, SurveyMonkey's validation technology, released the TrueSample API that allows developers to qualify survey responders to achieve effective results. The technology driving TrueSample ensures that people are who they claim to be and only take a survey once, all while eliminating those who choose random answers and unqualified responders. The TrueSample API provides pre and post survey data as well as real-time feedback to provide industry leading insight into surveys of all types.
Google announced an API for its Consumer Surveys service. The API allows developers to design surveys, target a specific audience, and analyze a results directly for integrate web and mobile apps. Early partners across analytics and visualization platforms only scratch the surface of potential.
The many developers who use the Twitter API have built thousands of creative applications that have certainly exceeded anything that Twitter's founders could have initially imagined when the API was released (for examples of some of these applications, check out our growing list of hundreds of mashups that use the Twitter API).