OpenStack is an open cloud computing platform founded by Rackspace and backed by NASA, see openstack.org. It's to counter the proprietary cloud offerings of Amazon's AWS and Microsoft's Azure. Ok, so maybe this doesn't exactly go under the 'operating systems' menu item, but it's pretty close.  From their meetup page:

This is the Atlanta OpenStack developer Meetup. We are a group of free software developers who are passionate about working together to help make the Openstack project a success!

Can't wait for the next meetup? Join us on IRC! We hang out on Freenode at #openstack-atlanta. See the Atlanta OpenStack Meetup page.

Upcoming OpenStack Meetups

Events - Atlanta OpenStack Meetup Group

Events - Atlanta OpenStack Meetup Group
  • Atlanta OpenStack Meetup Group

    Koffi Nogbe will be talking about connecting Keystone, the Openstack identity management service to an external authentication system. The demo will use the Apache basic authentication module or Apache form based authentication module, but the basic approach can be applied to any custom authentication system.

    Atlanta, GA 30307 - USA

    Thursday, March 19 at 7:00 PM

    Attending: 2

    Details: http://www.meetup.com/openstack-atlanta/events/220093910/

  • Atlanta OpenStack Meetup Group

    Stay tuned for updates closer to the event's date!

    Atlanta, GA 30307 - USA

    Thursday, April 9 at 7:00 PM

    Attending: 3

    Details: http://www.meetup.com/openstack-atlanta/events/219694781/

  • Atlanta OpenStack Meetup Group

    Stay tuned for updates closer to the event's date!

    Atlanta, GA 30307 - USA

    Thursday, May 21 at 7:00 PM

    Details: http://www.meetup.com/openstack-atlanta/events/220639582/