title: How to prevent Googlebot from overwhelming site?
body: <p>I'm running a site with a lot of content, but little traffic, on a middle-of-the-road dedicated server.  </p>
  
  <p>Occasionally, Googlebot will stampede us, resulting in Apache maxing out its memory, and causing the server to crash.</p>
  
  <p>How can I avoid this?</p>