PLSC 240: Introduction to Comparative Politics (Merritt): Electoral Systems & Political Parties

Most comprehensive global collection of political participation statistics available, covers presidential & parliamentary elections, numbers of registered voters and information of false ballots.

Provides scores, reports and statistics covering democracy and freedom across the world. There are reports on civil liberties, political rights, freedom of speech, freedom of press, and countries transitioning to democracy.

Ranks the level of political stability in every country in the world.

Focuses on current elections, but includes previous elections back to 1998. Developed by a non-profit International Foundation for Election Systems (IFES), the world's premiere election assistance organization.

Blog providing data on a variety of country elections. Note that the author is a student of political science and states his bias in the about section.

Intergovernmental organization focused on supporting democracy worldwide. Provides country profiles, data and reports on electoral systems and political parties.