"If you're not into network theory, then the difference between six and four may not seem very significant. But if you're interested in how news spreads around a network then it's dynamite. Next to traditional, few-to-many broadcasting, Twitter is the fastest way to spread news and information. In fact, it's the nearest thing the web has to wildfire. And the key mechanism that enables that is retweeting. The Korean researchers have found that this single facility generally enables any given message to reach a much bigger audience than those who are followers of the original tweet. So the moral for those politicians out there who are thinking about the next election is: forget Facebook, think Twitter."