The CoinDesk Node.js SDK by LapsuS unofficially interacts with the API to access bitcoin data. Example usage demonstrates how to retrieve current prices in USD and access historical information pertinent to the currency.
The New York Times has just announced its new Congress API, which provides capability for developers to access to four sets of data about US Congressional representatives and their votes: "a list of members for a given Congress and chamber, details of a specific roll-call vote, biographical and role information about a specific member of Congress, and a member’s most recent positions on roll-call votes" (see Congress API profile for details).
As first reported in mediabistro, The New York Times is planning to release an API sometime this summer. The goal, as editor of interactive news Aron Pilhofer put it, is to "make the NYT programmable. Everything we produce should be organized data."