On the subject of Pingdom et. al. it's interesting looking through the logs and seeing just how many HTTP requests are made by such services!
Our own site receives nearly as much traffic in terms of monitoring than it does in visitors, which is a pain! Maybe it's so competitors can catch us out or something
__________________
Vidahost - Hosting, Domain registration/management and more - now from £17/year!
General support: support@vidahost.com or freephone 0800 047 0417
Contact me: taylor@vidahost.com