OT: Where are the VoIP clue bats?

[Eric Brunner-Williams]

First, thanks for all the responses to "What vexes VoIP users?"
I'm looking for pointers to sites, like Geoff Huston's potaroo.net, 
that are VoIP clue dense, or mailing lists(*) where the VoIP-full lurk.

Thanks in advance,
Eric

(*) I'm already on the ecrit list, though my real interest in the 
ongoing IETF "emergency services" meme has been a "I'm alive" app, not 
circuit and bandwidth capture by government. I was pleased to see a 
"I'm alive" app fielded by Google last week at Christchurch, NZ.