John Robb thinks that k-logs (fancy word for weblogs) in the corporate environment are a good thing becuase they are archived for posterity.
While I think this a good thing for small businesses, ask Enron if they want all an employee's important communiques archived and available for subpoena, er, retrieval.
This is one reason convincing large corporations (with a dread of liability) to adopt weblogs into their corporate cultures is going to be an uphill battle.