What is twitter and why should I care

What a great breakdown of what twitter is. I think its hilarious how so many people have herd of it but have no clue what it is, I have recently given in a shot after reading the getting started guide for business, and it increased my web traffic 300% and generated a handful of leads, that weren't coming in at all.

http://webdesign.com/what’s-twitter-and-why-should-i-care/