And don't assume they have them already.

HTML, general concepts, a few specifics, such as linking tags, boldface, lists, etc.

web site -- basics

• what it is
  
  
• what makes it up
  
  
• how it's organized
  
  
• where it is

URL -- uniform resource locator

networking -- email and beyond, way beyond

gathering an audience -- understanding the audience is an integral part of journalism now
You cannot practice web journalism without considering how you are going to interact with the audience.
THINK: communities of interest.
REMEMBER: News as conversation.