A suggestion I have, would be to make pings or alerts dependent on other checks. For instance I have pings set to check 19 locaions, and an additional check against my ISP's gateway IP. If the gateway is down, EVERYTHING will show down (obviously)... i know this, but if the gateway goes down i get 20 emails that everything is down. It would be nice to be able to say the other 19 checks depend on the gateway check, and if it is down either don' bother checking the others, or don't alert on the others.