NYC anyone?
http://groups.google.com/group/nyyc
Traffic is basically non-existent, but it's useful to be subscribed because we use it to organize meetups every few months.
NYC seems to be an attractor to tech. Maybe it's Pecha Kucha. Or maybe a very well attended Ignite. Tech Meet-up anyone?
Or it could be Williamsburg... and the creatives it attracts.
also: http://hackrtrackr.com/