It's Covert Hops Society of Atlanta. No membership fee, meetings monthly that move from place to place in the Atlanta area (mostly in the perimeter and usually at a good beer bar or brewery), group brews quarterly at someone's house or business, and usually a summer picnic and December holiday party. Almost all communication is done through email, but they do have a Facebook presence. Some people are passionate about beer, some are passionate about brewing, and some not much of either.
There are a lot of homebrew groups in Atlanta...some are very technically oriented and some are drinking clubs. CHS is in between and you can make it whatever you want it to be.
While homebrewing is legal nationally (has been for a while, thanks to president Carter and that congress), transporting homebrew has been illegal...but until recently no one cared. Then some jack ass in the state legislature submitted a law that legalized homebrew transport for certain functions (competitions, tastings) as long as a bunch of criteria were met and local officials passed laws to allow the event and charged for the license to do it. This has mucked up our routine since places with alcohol licensees don't want to risk a bunch of homebrewers bringing beer to their place for sampling without the proper legal stuff being done for fear of being shut down by the DOR. The legislation got the DOR off their asses and now they are scaring businesses. Local legislators are not all quickly creating the environment to support the new law.