National Election Resources
Nonpartisan, nonprofit, "consumer advocate" for voters that aims to reduce the level of deception and confusion in U.S. politics. Factcheck monitors the factual accuracy of what is said by major U.S. political players in the form of TV ads, debates, speeches, interviews, and news releases. A project of the Annenberg Public Policy Center of the University of Pennsylvania. In August 2006 named by Time.com as "One of 25 Sites We Can't Live Without."
Includes election statistics, and financial information about candidates, parties and PACs. Campaign Finance Reports and Data.
You can browse an alphabetical list or search for a political organization name by keyword or phrase. A new law (P.L. 106-230) imposes three different reporting and disclosure requirements on section 527 organizations. It requires section 527 political organizations to file periodic reports with the IRS. These political organizations are required to report the names and addresses (and occupation and employer if an individual) of all persons who contribute $200 or more after July 1, 2000, and of all persons receiving expenditures of $500 or more after July 1, 2000. In the Internal Revenue Service Political Organization Section 527 Search Form 8872 Filings there are links to the actual filings (in pdf format)
Open Secrets—Center for Responsive Politics tracks money in politics, and its effect on elections and public policy. It provides detailed campaign finance profiles for politicians. In Donor Lookup you can find individual and soft money contributors by name, zip code, employer, candidate or recipient. The section on Political Action Committees is searchable and organized by category. State Information Directory features campaign finance profiles of the 106th Congress (updated monthly). Lobbyist Spending shows a industry-by-industry breakdown of spending and has a searchable database of individual lobbyists & lobbying firms.