For your learning, thinking and even a bit of laughter pleasure, I offer a few other great points:
Apples, oranges, blogs and boards, David Binkowski. Great overview of why discussion boards are useful and their value.
The value of WOM (it’s a cartoon), Amena/Idegosuperego
Business etiquette pointers for PR students, Karen Miller Russell/Teaching PR. And, those pointers are not just for students.