2600 is a quarterly based on the idea of "See Something, Say Something ." There are international meetings every week based on your local area/city/state/country.
Dude 1: Same time next week.
Dude 2: Same place bro.
Dude 1: Aight.
Dude 2: Ohh, I am trying to bring my bro to the next 2600 meeting he has some good info about Network Crypto.
Dude 1: That's great we always looking for new faces.