Interesting post by Tom Glocer, CEO of Reuters on why he feels that fellow CEO's should be blogging and participating in social media.

To quote from his post

'...I believe that unless one interacts with and plays with the leading technology of the age, it is impossible to dream the big dreams, and difficult to create an environment in which creative individuals will feel at home.  This does not mean that the ceo needs to program a third-party app on Facebook, but I believe it is ultimately more useful in understanding business concepts like viral marketing, crowd-sourcing or federated development to use a live example rather than wait for the Harvard Business Review article to appear in three years time...'

I would also add from personal experience that a CEOs blog keeps them in touch as much with their employees as it does the market place generally.

Look at any report on employee satisfaction at work and you will always see communication is rated poorly. Over 1/3rd of employees feel they are badly managed and motivated. To employees the senior management appears detached from the reality of 'day-to-day' work at the coal face. Decisions, that seem clear in the boardroom are just not understood or are miscommunicated through 'Chinese Whispers' of cascade communication. A blog provides a platform for two way dialogue - management to employees and back again. It allows a CEO (assuming they are not surrounded by corporate communication specialists and legal people who massage every word) to use their own words and express their views of the business and what motivates them.

Look at Tom's blog. Not only do you get to learn about what he thinks and feels about a number of subjects but via his blog we see his taste in music and books.