Twitter is one of my favorite tools to spread the word about new content on our blog here (yes, even more than Facebook!). It's the "snowball" nature of it that really gets me - Karen Retweets my post to 600 of her Followers. Three of those followers ReTweet Karen to 600 more followers. All of the sudden, one ReTweet (plus 3... what would we call them? Sub-ReTweets? Now we're really getting technical!) has put my post in front of 2,400 faces.