What’s unclear is how much of this tendency online is really a result of preference and how much is due to the websites feeding you potential partners that are of the same race as you. These websites use algorithms to try to figure out who you like. And if they assume you’re going to prefer people of your own race, they might feed you a steady diet of potential matches of the same race. Since the algorithms tend to be proprietary – they don’t share them – we don’t know whether this is skewing the data.
One is that people are more likely to date someone of another religion. I think that’s because you can’t tell what someone’s religion is from their picture.
In my data, about 22 percent of straight couples met online. For gay couples, it’s about 67 percent. Online is tremendously more efficient for gays and lesbians. And that’s because it’s much harder for them to identify potential partners offline.