Students who post profiles on SeekingArrangement.com know what they want, so “it’s almost like a business partnership”, says Angela Bermudo, a spokesman for the company. The site hosts some 900,000 profiles of sugar babies enrolled in American universities, up from 458,000 two years ago. Their ranks swelled during the recession and are still growing fast, says Brandon Wade, the site’s founder. A year ago nearly 1,200 students with an e-mail account belonging to an American university posted a profile on the site every day; the daily average has risen to about 2,000. The site has even stopped advertising online. Its ads used to pop up with search results for terms such as “student loan”.