These links refer to zoning law in DeKalb County or in Georgia, or zoning in general.
The current DeKalb County zoning ordinance can be found at Municipal Code Corporation's site. This is the entire county ordinances, Chapter 27 is the zoning ordinance.
The California Anti-SLAPP site explains Strategic Lawsuits Against Public Participation, and how they are used to intimidate citizens into avoiding involvement in issues such as rezoning. Their page on Georgia lists Georgia laws and court cases related to SLAPP lawsuits.