Having known for most of her life that she was adopted, Jenessa Simons from Utah recently decided to use the social networking website to help her find the answers she's been looking for.
Simons told KSL: "Everyone on Facebook's been posting posters like, 'One million likes and I get a puppy', and I thought, 'Hey, these are getting shared around. I've seen kids get likes and get a puppy, so I should probably give it a shot'."
The Facebook picture was liked by more than 15,000 people and shared more than 160,000 times.
Just a couple of days later, she found her birth mother.
"She was just very surprised," said Simons. "It was kind of intermittent messaging each other, but she said she told her extended family, and they were all completely ecstatic that I had gotten hold of her."
Soon afterwards, Simons's biological father contacted her. She recalled: "He sounded really surprised, but happy."
Simons's birth parents - who are no longer together - gave her up for adoption at the time because they were only 16 years old.