Where in the documentation does it state a resend of meeting requests?

Q: Where in the documentation does it state a resend of meeting requests?
A: http://support.microsoft.com/kb/931667 . Under "Detailed behavior of the Time Zone Data Update Tool in specific situations" it shows the steps the tool takes when the tool processes a item where the user is orginizer, and one of the steps is "Send updates.

Also, each meeting update costs about 5KB, you should consider this during the planning stage.