Microsoft x Twitter

I know everyone's tired of Twitterology... Corporate marketers usurping the network, poor attempts to "keep it real," politicians, celebrities, magazines, all clamoring to join the Tweetosphere...

But CEOs?

ExecTweet.

(From their site) ExecTweets is a resource to help you find and follow the top business executives on Twitter. Created by Federated Media, in partnership with Microsoft, ExecTweets is a platform that aggregates the tweets of top business execs and empowers the community to surface the most insightful, business-related tweets.