News organizations put their best efforts into covering presidential campaigns. Some that I like best are:
Politico 2012 Live - which gives full coverage of issues, positions, and well-written and edited news.
New York Times Politics has deep coverage and is also looked at closely by the campaigners themselves.
CNN Politics is like the New York Times in both the depth of coverage (much more video) and the recipricol influence it has on candidates.
CQ Weekly is an important news magazine for covering events related to the federal government. It also has a Floor Vote Search for searching how candidates voted if they were-- or are in Congress. For instance, search on the keyword "Mccain" or the keyword "Obama."
National Journal Policy Central - Election 2012 Reports on politics and policy for an academic audience. Also has features such as Ad Spotlight, Poll Track, and Blogmeter.
The Huffington Post has a decidely liberal slant, but is useful for the latest political gossip.
BuzzFeed/Politics likes to be first with Web gossip and viral videos.
2012 Presidential Candidates - Wikipedia article with biographies, description of parties and links.
C-SPAN Politics has video of debates, campaign ads and speeches.
FactCheck.org is a good place to find the latest rumors about candidates. This site describes itself as "nonpartisan, nonprofit "consumer advocate" for voters that aims to reduce the level of deception and confusion in
A project of the Tampa Bay Times that tracks the claims and campaign promises and subsequent words and actions of politicians and pundits.
The Green Papers has details on the 2008 elections as well as an archive on elections going back to the 2000 election.
CQ's Vital Statistics on American Politics has historical tables of primary and election results-- it's useful more as a guide to sources than actual numbers for this project.
2008 Third Party Candidates - Wikipedia article with bios and links
Third Party Presidential Candidates - list and biographies through 2004 Listen to an audio discussion from the British publication the Economist on Democracy in America on third party candidates and whether the two-party system is the best America can come up with.
Statistics for presidential elections by state can be found in the print reference book America Votes in both Paley Library and Ambler Library Reference Departments at call number JK1967.A8
America at the polls : a handbook of American presidential election statistics Paley Reference JK524.A73 and Congressional Quarterly's Guide to U.S. elections JK1967.C662 1994 go back to 1956.
CQ Weekly (aka Congressional Quarterly Weekly Report) reports on elections and has been doing so since 1956 (1983 to the present is online.) The print is kept in Government Documents in the compact shelving at the end of the Government Documents. Each year has an index to articles.