I think if your prices are reasonable, and you are convenient to some families commute-wise, and you have a good home daycare environment to offer it's just a matter of getting the word out.
My advertising advice:
#1 - Make your own website. You can do it for free. Post info and some nice pics of your setup. (Try to use natural morning light when you take your pics and not a flash. Just looks nicer.
)
#2 - Google whatever you'd type in if you were a local searching for care. Atlanta daycare or (zip code) childcare or (main road) daycare or (neighborhood) daycare. Whatever listing sites show up, those are the ones worth advertising on. Make sure to put the link to your website on the ad.