Professors Duel Students on Web Sites

The name just about says it all: Professors have failed in recent years, through the power of persuasion and even in the courts, to curb what they see as the excesses of Internet sites that post students' teaching evaluations anonymously. They've complained that sites like not only denigrate instructors' teaching abilities but contain personal attacks as well.

Now an academic Lone Ranger, of sorts, has stepped in to battle Web sites where