Common Cause is a lobby web site which contains a great deal of information about federal level policy issues, governmental issues, and elections.
http://commoncause.org/

Common Cause-States is a lobby-sponsored web site which contains a great deal of information about state level policy issues, governmental issues, and elections.
http://www.commoncause.org/states/states.htm

Center for Responsive Politics is a lobby-sponsored web site which deals with campaign and elections.
http://www.crp.org/

Public Citizen is a web page which deals with the causes and programs for which Ralph Nader has been a leading advocate.
http://www.citizen.org/

FECinfo is a web page which contains information from the Federal Election Commission on election spending.
http://www.tray.com/fecinfo/