- The Apache Cafe used to host the somewhat legendary Mike Club every week on Tuesdays, but it's now been replaced by Tru Skool, which includes both a prerecorded song battle and an MC battle (The Mike Club was just an MC battle). Also at the Apache is the monthly Producers Swap Meet a competition of beats with big name sponsors.$10
- For the singer/songwriter, Eddie's Attic, in Decatur is the place to be. They host what they can rightfully claim is "Atlanta's premiere open mike for the performing songwriter," and they've discovered some pretty big name acts over the past 15 years, too. $5
- The Eyedrum has a monthly Open Improv for the more experimental and adventurous types. Basically, people bring their instruments and sometimes their own amps and make lots of noise -- it's very free form. Usually it's on the Thursday of the month, though you've got to check their calendar (This month on it's on the first Friday). free
That's it for now. I'm sure I'll add more to this list in the future!