These are among the key findings of a national survey of dating and relationships in the digital era, the first dedicated study of this subject by the Pew Research Center’s Internet Project since 2005.
One in every ten American adults has used an online dating site or a mobile dating app.
Online dating is also relatively popular among the college-educated, as well as among urban and suburban residents.
And 38% of Americans who are single and actively looking for a partner have used online dating at one point or another.
Women are much more likely than men to have experienced uncomfortable contact via online dating sites or apps: some 42% of female online daters have experienced this type of contact at one point or another, compared with 17% of men.
Paid dating sites, and sites for people who are seeking partners with specific characteristics are popular with relatively large numbers of online daters: Organized outings are much less common, as just 4% of online daters have attended a group outing or other physical event organized by an online dating site.
And more seriously, 28% of online daters have been contacted by someone through an online dating site or app in a way that made them feel harassed or uncomfortable.
Compared with eight years ago, online daters in 2013 are more likely to actually go out on dates with the people they meet on these sites.
Some 66% of online daters have gone on a date with someone they met through an online dating site or app, up from 43% of online daters who had done so when we first asked this question in 2005.
Some 42% of Americans know someone who has used online dating, up from 31% in 2005.
And 29% of Americans now know someone who met a spouse or other long-term partner through online dating, up from just 15% in 2005.