"Three Types of Student Websites"
.Sites that are offensive, obnoxious & insulting.
.Also, sites that contain some sort of veiled threat of violence or of destruction of property.
.Sites that contain outright blatant threat.

Libel: An oversimplified definition.
.Publication of a "false" statement of fact that seriously harms someones reputation.
The Catch: Knowing something is true and proving it's true can be two different things.