The GovDelivery Create Tutorial Ruby Sample Code by GovDelivery demonstrates how to access the API. Developers can use GovDelivery code as a reference because it's now part of Granicus, an organization dedicated to improving communication technology in government applications. Visit @Granicus and @govd_dev
Brownouts got you fried? The Open Automated Demand Response API (OpenADR) aims to improve a critical aspect of handling the power load: improving Demand Response (DR) to electricity needs. Understanding demand, communicating demand and acting on it are all essential elements of effective DR. The SOAP/XML API is all about helping grid managers use common standards to leverage the OpenADR specifications.
The Federal Register is touted as "The Daily Journal Of The United States Government". Its website, federalregister.gov, allows access to the documents published there, which include proposed rules, final rules, public notices, and Presidential actions. It's a pretty interesting and useful look into what the US Government is doing, and how it might affect your life. Amazingly enough, it has a full-featured API, which is a truly open source project, to allow access to the Federal Register within applications.