Digg Defender
I don’t anticipate any of my rantings making it onto Digg or Slashdot, but just in case I’ve installed the Digg Defender plugin, which redirects any visitors from such high-traffic sites to the Coral Cache system to reduce the chance of the server crashing. It shouldn’t (really!) affect people who haven’t come from a link on such a site, and even if you have, you get the same content anyway.
EDIT: I’ve removed the plugin as it seemed to be slowing the site down even for non-Digg users