WALL STREET JOURNAL - Jan 7 - Sites like PollenTree.com and Modamily match people who want to have children, but not necessarily romance. "The alarm clock goes off for men as much as it does for women. You'd be surprised by the number of young, professional straight men who want to have kids," said Patrick Harrison, co-founder of PollenTree, the largest of the subscription-based co-parenting sites. (The service also connects people with egg and sperm donors.) He said ~60% of the co-parenting seekers are women. The male clientele is evenly split between single gay men and heterosexual men, both seeking to be co-parents with women. There are also same-sex couples looking to have a mother or father figure in their child's life. The success rate is hard to measure. PollenTree has had ~90K members since its 2012 launch. Mr. Harrison estimates that ~500 babies have been born as a result of co-parenting matches on the site.