If you are a startup company planning to hire some web celebrity (like a high-profile blogger), make sure your web servers are capable of handling the web traffic - it could be equivalent to getting Digged, Slashdotted, GigaOmed, Scobleized and TechCrunched simultaneously.
The following Alexa graph depicts the traffic at Podtech.net (maroon) and Zillow.com (blue) - look at the spike in traffic when Scoble resigned from Microsoft to join the podcasting startup.
In case of Zillow, traffic peaked when Vanessa quit Google to join Zillow.