Jennifer Egan in the New York Times Magazine:
Sperm donors, like online daters, answer myriad questions about heroes, hobbies and favorite things. Karyn read her donor’s profile and liked what she saw. “You can tell he comes from a warm family, some very educated,” she said. He had worked as a chef. He had “proven fertility,” meaning that at least one woman conceived using his sperm. Like all sperm donors, he was free from any sexually transmitted diseases or testable genetic disorders. “People in New York change sex partners quicker than the crosstown bus,” Karyn said. “I’d be a lot more concerned about my date next week.” But she especially liked the fact that he was an identity-release donor (also called an “open donor” or a “yes donor”) — a growing and extremely popular category of sperm donors who are willing to be contacted by any offspring who reach the age of 18.