This China Daily article says that “two years ago, the Funk family of suburban Chicago adopted a Chinese baby girl who had been abandoned on a sidewalk near a Yangzhou textile factory.Last year and halfway across the United States, the Ramirez family of suburban Miami adopted a girl who had been abandoned a week later on the same spot. Both families named their daughters Mia. Turns out, a first name and Chinese heritage aren’t the only things the 3-year-olds have in common.
The girls’ mothers,Holly Funk and Diana Ramirez,met on a Web site for parents who had gone through international adoptions. After a flurry of e-mails comparing photographs and biographical details, DNA testing proved the families’ suspicions: The girls are probably fraternal twins. “I was in shock,” said Ramirez, who lives with husband Carlos in Pembroke Pines, Florida. “I was like, ‘OK, well, now this is for real.”‘ The Internet and Web groups revolving around international orphanages are increasingly being used to link adopted children with biological kin. The site that the Funks and Ramirezes used has a membership of 137 people, with 15 sets of twins and seven sets of siblings who have been confirmed”.

Adopted twins from China reunite thanks to Internet