Read the 95 theses here.
The Cluetrain Manifesto is a set of 95 theses organized and put forward as a manifesto, or call to action, for all businesses operating within what is suggested to be a newly-connected marketplace. The ideas put forward within the manifesto aim to examine the impact of the Internet on both markets (consumers) and organisations. In addition, as both consumers and organizations are able to utilize the Internet and Intranets to establish a previously unavailable level of communication both within and between these two groups, the manifesto suggests that the changes that will be required from organizations as they respond to the new marketplace environment.(from Wikipedia)