thessrb is a group of (not just) geeks, who love Ruby (among other things), live (not just) in Thessaloniki (Greece), and meet at least once a month to throw some presentations (sometimes), and continue with a halaruby (every time).
Halaruby is us leaving the presentation site, and going to a place to have beverages, chat, and network.
We have at least one meetup every month. Here are some ways to find out when the next meetup will be:
Become a member here http://www.meetup.com/thessrb/
Visit http://git.io/thessrb and click "Watch" to start receiving notifications in your personal GitHub account. Whenever we announce a new meetup we create a pull request that has all the details.
Follow some core members on Twitter (@arcandros, @amiridis, @xarisd, @hypest)
Follow instructions here