Utility Listening
Here are some links of interest:
I invite you to join us on IRC chat channel #monitor
on servers:
Neuilly.FR.EU.UltraNET.Org
London.UK.EU.UltraNET.Org
just connect to either server and go to the join command and type #monitor
Here you will find others like us to talk,swap frequencies and get information.
Also you can find a worldwide directory of IRC users of #monitor on ghahn's site