Georgia is one of those states where I have nobody and even my husband, with quite a few Southern roots, only has collateral Williams family who settled in the northwest corner of the state, close to Tennessee.
Here are a number of websites to get you started. Each has many links to other sites, mostly free.
As always, be sure to check local towns and counties for libraries and historical societies with unique holdings!
FamilySearch Research Wiki – Georgia
Linkpendium – hundreds of links to every county in Georgia
Georgia Genealogy – Access Genealogy
RAOGK – State of Georgia Research Guide
Georgia Genealogy Records Online – New Horizons Genealogy
GA GenWeb– Volunteer site, free, with info grouped by counties. It’s been around since the 1990s and has some great stuff. However, amount of info depends on what has been shared and posted. Well worth a visit.
Chronicling America – Georgia historical newspapers digitized and online
Genealogy Society of Cobb County, Georgia – This website has a long list of links to other genealogical & historical societies in Georgia.
Washington County Historical Society