RateMyProfesors.com has launched a new set of annual rankings, including the top rated professors, as well as the hottest, as rated by students at universities across the country. The lists are compiled from what now include more than 7.5 million ratings from students on the site.

RateMyProfessors has introduced “Professor Rebuttal,” a way for teachers to respond to the student reviews, a feature that many professors probably thought was long overdue.  RateMyProfessors also launched a Facebook application that lets users search for teacher rankings on the social networking site.