Several that I interviewed, I found in the local city paper (The Sun Current). The one I actually take my son to now, though, I found because her house is near ours and she had a sign hanging on her fence along a fairly busy roadway.
If you are licensed, there is a childcare Referral Line through the Community Action Council Greater Metro Area Daycare association. They will list all licensed daycares, in home or centers, and their openings. I think that once you are licensed, you're kind of automatically listed there, but I'm not sure. If you want to call them to find out how to get listed, the number is ###-###-####.