Many online daters enlist their friends in an effort to put their best digital foot forward.
Some 22% of online daters have asked someone to help them create or review their profile.
One factor behind the substantial growth among younger adults is their use of mobile dating apps.
About one-in-five 18- to 24-year olds (22%) now report using mobile dating apps; in 2013, only 5% reported doing so.
But it still means that one-third of online daters have not yet met up in real life with someone they initially found on an online dating site.