Unlike the more formulaic dating sites, encourages users to spend their twenties dating as many people as possible to find what they like in a partner. Without paying for a membership, you can create a profile, receive match suggestions, search for potential matches and send "winks" to people.
Unfortunately, without a full membership you can't respond to or block other users, use the chat function or see who has viewed your profile.
This service takes the stress out of finding love online and allows you to have fun meeting new people for casual and serious relationships.
This niche dating site currently has slightly more men than women members (44% vs 56% as of September 2009) and it has enjoyed a steady growth in new members during the past few years.
"Brainiac sites like Ok Cupid, which tend toward math-based equations to find you romance, are good choices for people who think they fall outside the norm to some degree and want a geek who might get lost in the cracks of a bigger site," Masini says.