I happened to hear a podcast of a Net2 San Francisco event, and it felt like I'd come home.
I wanted to find a place in that world, so, I contacted the NetSquared community manager to find out what was happening in Philly, and got the (not surprising) answer, "Nothing yet. You want to start something?". She put me in touch with Ivan Boothe and we gathered together a handful of folks who wanted to start a group. That was 5 years ago, and it's been a great ride. I've met a lot of great people, learned a lot and feel at home.