<p>There is also the USG Senate Course Guide: [USC</a> Undergraduate Student Government](<a href=“http://usg.usc.edu/courseguide/]USC”>http://usg.usc.edu/courseguide/)
I don’t know when it was last updated though. It’s only semi-helpful, since I could personally only find reviews from Spring 09 and before. There weren’t any reviews for the classes I was looking for in Fall 09 and Spring 10. But the user comments are pretty helpful if the same professor is still teaching the same class. There’s also [Rate</a> My Professors - Find and rate your professor, campus and more - RateMyProfessors.com](<a href=“http://www.ratemyprofessor.com%5DRate”>http://www.ratemyprofessor.com), though I would take everything on there with a grain of salt.</p>