The Google Static Maps API (our Google Static Maps API Profile) is quite popular with developers looking for a relatively lightweight method of including Google Maps as rapidly-loading images on web sites. If you're not familiar with this API, it essentially allows you to add a custom Google Map (including markers and paths) as the source for an image element on a web page.
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.