Wired News has a story called How the Word Gets Around.
"The blogosphere has a strange ability to push a seemingly obscure idea into the forefront of people's minds in a heartbeat. How this happens is a bit of a mystery. Sam Arbesman wanted to know how it works, so he created a meme and set it loose.The Brandeis University senior had been reading various studies that looked at historical data on the way information works its way across the Internet. But he was more interested in seeing if he could figure out, in real time, the trajectory of a meme once it hits the blogosphere. So he came up with a plan to find out. He called it the Memespread Project.
The initial analysis of Arbesman's Memespread Project is posted online (PDF).
