The really fascinating blog Data Mining is tracking a rumor spreading through the internet. The rumor, that Technorati (a blog search engine- use it!) will be bought out by a major search-engine player, began possibly on August 11, and he names the blog.
The parallels with the spread of an epidemic are really interesting to me. I hope Matthew posts an update in the next week or so!
Found, ironically enough, on Blogdex, which tracks "the most contagious information currently spreading in the weblog community."