Axiom Home Page Forums General Discussion Stereo Biwiring?? - What does it do?

Basically - Why do you do it, and how do you do it? Oh yes, and, do you need to do it? I was talking to a guy at targethifi(www.targethifi.com) and he said something about it being better to not biwire if the gauge of the wire was good enough(yes this is vague, my apologies). Any links to a website with possibly a diagram of how to do it would be appreciated(If you feel that explaining will take too long .