It's possible for you to say three things," says Eli Finkel, a professor of social psychology at Northwestern University who studies how online dating changes relationships. First, the best unions are likely unaffected. Happy couples won't be hanging out on dating sites. Second, people who are in marriages that are either bad or average might be at increased danger of divorce, due to increased accessibility to new partners. Third, it is unknown whether that is good or bad for society. On one hand, it's great if fewer people feel like they're put in relationships. On the other, signs is really sound that having a stable amorous partner means all sorts of well-being and wellness benefits." And that is even before one takes into account the ancillary effects of such a decline in devotion---on children, for example, or even society more generally.