Wikipedia
BuyBlue.org was an online consumers' guide designed to help progressives in the United States choose brands that favored their politics. Its editors rated companies based on their campaign contributions and other factors. Its name refers to the popular idea of the U.S. being sharply divided, culturally and politically, into red states and blue states that voted Republican and Democrat, respectively, in the 2000 election.
The website encouraged users to submit articles that criticize or applaud a company's business practices. The submitting user assigned a binary categorical rating of positive or negative with regards to the company's adherence to progressive business practices as described in the article. The absolute number of articles submitted and each submitted article's rating were used to calculate a company's overall rating. A five-point scale ranked a company's degree of progressiveness or regressiveness according to users' submissions.
The website hosted blogs and message boards designed to steer consumers towards businesses favored by the party, to exert direct political pressure on targeted businesses, and to foster activism among the site's users.
Though this website was geared toward liberals, conservatives could also use it to find out which companies are supporting Republicans.