We're used to seeing start-ups built on top of APIs. We even wrote a series of posts to do it yourself. Fueled by the popularity of location-sharing site FourSquare, marketers are using the FourSquare API (our FourSquare API profile) to promote their products.
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 18.104.22.168) as input. The service was announced, along with a developer portal, at the Business of APIs conference in San Francisco.