Who's Your Daddy? The Answer May Be at the Drugstore: Scientific American

More than 60,000 people have purchased the paternity testing kits since they first became available without prescriptions last year, according to Doug Fogg, chief operating officer of Identigene, which makes the over-the-counter kits. More than two dozen companies sell DNA tests directly to the public, ranging in price from a few hundred dollars to more than $2,500.