Rachel Lehmann-Haupt blogs about altruistic sperm donors who give away their seed for free:

On www.trentdonor.com, a twentysomething 6-foot-1 blond from Northern California poses to accentuate his square jaw, wide smile, and puppy-dog-brown eyes. He politely promises to respond within three days, although he can take up to a week during heavy donation months. And he’s not talking about a clothing drive. This young stud is giving away his sperm for free, except shipping costs, because, he says, he has “a spirit of volunteering to the community,” and along with the summers he has spent building orphanages and schools with his church in China and Mexico, he believes that “sperm donation is one more way he can help those in his community who may be in need.”