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
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.
The New York Times' (NYT) list of web services includes some impressive APIs that make it easier to access and track information about a range of interests, including best selling books, real estate, people, articles, and the United States Government. The NY Times development team has been incorporating feedback from users in order to make changes and improvements on a regular basis. Most recently, NYT developers answered a request from users to add information about bills and speeches to its Congress API: