There's still government hoops to jump through, but the US Census is making much of its recent data available by the slice, rather than the whole pie. The US Census Bureau API provides access to 2010 Census data, including demographics, income and how many women in New York take public transportation to work (and that's excluding taxi cabs).
This is the first API profile in what we are calling the "Growth Series." Mapbox provides an API that allows developers to create maps with rich data visualizations by using multiple data layers. This feature along with others has fueled an 11x growth in calls made to its API.
NoSQL databases have grown in importance over the last decade. These databases differ greatly from a traditional SQL database by storing data in flexible stores that can change on the fly. This article reviews seven APIs that allow developers to integrate their apps with NoSQL databases.