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http://www.koofers.com/

These are the public entries for this link:

• Koofers
  Exams, Rate/Pick Professors, Ratings/Evaluations, Notes Koofers.com is an interactive community that serves the academic needs of users through information sharing. The service provides users with vast amounts of information (instructor ratings, grade distributions, past exams, quizzes, study guides, etc) with the intention of facilitating collaboration and "leveling the playing field" for all students.
  By timepiece in Education & Reference > Education with education

NB: The average rating is calculated using the rating for both public and private entries for this link.