The Daily Compilation of Presidential Documents, 1993 - the present, contains the official materials released by the White House Press Secretary. They include executive orders, proclamations, speeches, appointments, resignations, etc.
Alphabetical List of Resources
Wildly entertaining and informative, Dave Leip's Atlas covers presidential, U.S. senatorial, and gubernatorial elections, polls, and predictions. Coverage varies by state for the senatorial and gubernatorial elections, but the presidential elections covers 1789–2016. It also includes an Electoral College calculator, which really shows how complicated this process is.
Produce comprehensive business and residential lists as well as detailed demographic reports. Assess business viability, perform market and site location analysis, create sales leads and/or marketing mailing lists.
DigitalLearn.org is a collection of self-directed tutorials for end-users to increase their digital literacy. It focuses on the most basic skills, such as using a computer, navigating a web site, and searching. Modules are video-based with narration, 6 to 22 minutes long, written at a basic reading level, and help learners practice skills like using a mouse and setting up passwords.
DPLA connects people to the riches held within America's libraries, archives, museums, and other cultural heritage institutions. All of the materials found through DPLA—photographs, books, maps, news footage, oral histories, personal letters, museum objects, artwork, government documents, and so much more—are free and immediately available in digital format.
This site provides detailed information on not only the two main political parties, but the big three Third parties—Constitution, Green and Libertarian, and smaller Third parties such as the Prohibition Party, the Piraty Party and the Socialist Workers Party. It even covers "other parties" that have yet to endorse or field any candidate for office, such as the American Eagle Party and the Canary Party. Interesting stuff.