We've previously covered 3 free to geolocate any user. Today there's another option, with Quova offering its service for free for the first time. The simple API provides extensive geographic information with only a user's IP address (like 22.214.171.124) as input. The service was announced, along with a developer portal, at the Business of APIs conference in San Francisco.
The previously popular Google Earth API is being deprecated and is due to shut down in early 2016, signalling the end of access to its 3D imagery via the API. This post by Timothy Whitehead for Google Earth Blog looks at four applications that used to use the API, and what they are using now.