Some of the most popular political quiz websites are ISideWith.com, PoliticalCompass.org, TheAdvocates.org and the Pew Research Center Political Typology Quiz. All of these quizzes help determine where a visitor's personal beliefs fall on the political spectrum.
ISideWith.com features questionnaires that help visitors identify which parties and candidates most closely represent their political views. PoliticalCompass.org, which has been online since 2001, asks users to answer a series of questions, and their political orientation is plotted on a 2D graph with axes representing economic and social policy. A similar, shorter version hosted by TheAdvocates.org has been taken over 20 million times. The Political Typology Quiz categorizes visitors into distinct political belief systems based on their answers.