I adopted an infant from CA, and used a combination of a semi-private adoption agency, that worked with social services in the end. It was a fost-adopt system. It can also be called concurrent planning...but it's very cost efficient, and many times there a wonderful kids that really need a good home. You should try it. First, you certify as a foster parent, and then you proceed to the actual adoption if all goes well. That way..you can actually test out the child, and make sure that you are right for one another. The fees are minimal. See this site for available children. If there are none there..foster care/adoption agencies often times hold children's fairs with social services workers to encourage adoption. You simply attend, bring your resume for being a parent, and they call you with possible matches (after you are fully registered as a fost/adopt parent). Hey..noone said it was going to be easy. Try these sites...there are hundreds of agencies similar to the one below, that offer foster/adoption. Just Google it. The photo below is of my son, adopted through the semi-private agency.
Aspiranet
California Kids Connection
Trivani International: Turning Business Into Benevolence