These are the main that you do when you are learning.

These activities often go from left to right, top to bottom, but you often move from one quadrant to the other rapidly.

Discover

Gather

• Note taking + Annotations
• Document management
• Data exchange formats and content languages
• Programming, database management
• Knowledge representation
  

Create

• argumentation tools
• concept mapping tools
  

Share

• blogs and wikis
• personal publishing
  

Hypertext-based Knowledge Workbench

Visual Knowledge Workbench

This is a good image of what these four simple things can lead to.

Natural Language Tools

What is really good about this is the concept of a prototype