Are Genetic Testing Sites the New Social Networks? - The New York Times | iPads, MakerEd and More  in Education | Scoop.it
Three years ago Dyan deNapoli, a 57-year-old author and TED speaker who specializes in penguins, was given a 23andMe genetic testing kit for her birthday. Intrigued, she spit in the tube and sent the results to a lab in Burlington, N.C.

About two months later she received a pie chart breaking down where her ancestors lived (99.4 percent of them were from Europe). What she was most giddy about, however, was a 41-page list of all the people who had done the test and were genetically related to her: 1,200 in all. (Customers can choose whether their information is shared with others.)

“I had the names of everyone from my immediate family members to my first cousins, second cousins, third. Once I got past fourth cousins, it went to my fifth cousins, and beyond,” said Ms. deNapoli, who lives in Georgetown, Mass. “It started me down this genealogical rabbit hole.”