Infertility Support Group
In vitro fertilization is one of the most common and utilized ways of treating conception problems. This support group is dedicated to those beginning their journey with IVF and needing support. Join the community and share your experiences, advice, and story with people going through similar challenges starting a family.

If they do not, call your OB/GYN and let them know you are interested in adoptions and they may be able to point you in the right direction or directly to a reputable agency.
You can also call your local Dept. of Health and Human Services. They should be able to get you in touch with state adoption agencies and information. But if you do call DHHS remember they are a govorntment run agency and they tend to be grouchy individuals and are sometimes jerks to talk to.
Hopefully one of these avenues pans out for you. I've done all 3 (I'm still in the info gathering stage) and I've gotten a lot of information.
One last thing. You can also just Google "child adoption in (enter your state here)." Most states have a .org website now that have all sorts of info on state programs of all kinds, from jobs to DMV info, and even to adoption and foster care info.
All agencies do like an open house/intro sort of thing a couple of times a year (all that I looked into anyway). So, once you narrow it down, those can be a big help.
http://www.dcfs.state.nv.us/DCFS_AdoptionChildrenMain.htm
And I also thought of another place to look to for information. You can call a family law office. They might be able to assist you but will probably want money up front.