Have you registered with the ISRR ? If not, you can download the application at
www.isrr.net .
Another good site is
http://www.geocities.com/Heartland/Flats/3666/
Also, when posting, use date of birth, gender, and city and state of birth when known.
There are many registeries on the web on which you can register. Some are state specific.
I agree with the birthmoms above about why you bparents may not be searching. I personally did not think that I had the right until one day I decided that I should make it easy for my birthdaughter in case she was looking.
Best wishes in your search,
Barbara