Innovation

John Seely Brown presents a nice framework for thinking about innovation:

• Incremental innovation, that is "cheaper, thinner, faster and, of course, more features."
  
• Architectural innovations, which involve "a restructuring of the very building blocks of a product family, industry, or infrastructure." Think Skype or Cloud Computing, which offers a new way of doing something we're already doing.
  
• Disruptive innovations, which are innovations that "cause us to see and interact with the world differently." Examples include Memex, automobiles, and Sketchpad.