What is Complexity?

Here we present a list of descriptions, attempts at definitions and explanations of "Complexity". We invite our readers to submit links to other attempts at defining complexity.

  1. Principia Cybernetica - What is complexity?
    http://pespmc1.vub.ac.be/COMPLEXI.html
  2. Murray Gell-Mann - What Is Complexity?
    http://www.santafe.edu/sfi/People/mgm/complexity.html
  3. Stephen Wolfram - Complex Systems Theory
    http://www.stephenwolfram.com/publications/articles/general/88-complex/2/text.html
  4. Frank Miele - A Quick & Dirty Guide To Chaos And Complexity Theory
    http://www.skeptic.com/newsworthy12.html
  5. ComDig about Complexity
  6. Google about Complexity