[ssslippy]

Depending on what the shout box is set to its refreshing normally every 5 seconds for EVERY user who has the shout box on the page. This is easily 1000's of page views a minute. Try switching to Infernal Shout and enable the AOP system which only refreshes the page upon the box actually having some to update.

If you notice how php files are eating a major part of your bandwidth every time the shout box refreshes that's a php file being called.