Here's a story that will be used as an example of why it's vitally important to watch what you say on Twitter. A representative from Ketchum New York (a PR and Marketing firm) heads to Memphis to give a big presentation to their big client, FedEx, and totally offends everyone who works there before even stepping foot in the building.

Upon landing in Memphis and getting a lay of the land he tweets, "True confession but I'm in one of those towns where I scratch my head and say, 'I would die if I had to live here.'"

Whoops.

This is why I keep my business blog (this one) and my personal blogs separate from each other. In today's world of Google cache and archive.org and BCC'd emails, you never know who's listening.

To quote that noted capitalist Michael Corleone, "It's nothing personal. It's just business."

An 18-year-old hacker with a history of celebrity pranks has admitted to Monday's hijacking of multiple high-profile Twitter accounts, including President-Elect Barack Obama's, and the official feed for Fox News.

The hacker, who goes by the handle GMZ, told Threat Level on Tuesday he gained entry to Twitter's administrative control panel by pointing an automated password-guesser at a popular user's account. The user turned out to be a member of Twitter's support staff, who'd chosen the weak password "happiness."

Nice. I hope this appears in her quarterly salary review...