baby boy adopted 1967 born 1966 looking for birth parents

Yes. But I didn't know if that info. should go on here or somewhere else. I have my adoption papers and the birth parents were told it would be sealed, but the powers that be goofed and I know what they named me, my birth mother's name, and just found out some new info. My adopted father died many years ago. My adopted Mom told me two weeks ago that my parents were graduate college students dating, but not ready to be married or start a family, opting for careers first. Their parents wanted me, but since birth mom had all the rights she said she wanted me up for adoption. Do you know where I should register for help finding them? I've tried the telephone book and am one step away from calling a private investigator like my wife did to find her father, only he died two months later and denied being her father. I could use any help possible. You are my first response to this message. THANK YOU!