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The site supports multiple modes of communication, including instant messages and emails.

Ok Cupid was listed in Time magazine's 2007 Top 10 dating websites.

Among other things, The featured a number of humorous self-quizzes and personality tests, including the four-variable Myers-Briggs style Match Test.

Spark Match debuted as a beta experiment of allowing registered users who had taken the Match Test to search for and contact each other based on their Match Test types.

The website added a bevy of nontraditional profile options for users to express their gender identity and sexuality in late 2014.

These options—which included asexual, genderfluid, pansexual, sapiosexual, and transgender categories—were added to make the website more inclusive.In 2001, they sold Spark Notes to Barnes & Noble, and began work on Ok Cupid.Editorial posts from 2010 by an Ok Cupid founder in which and pay-dating were criticized for exploiting users and being "fundamentally broken" were removed from the Ok Cupid blog at the time of the acquisition.Ok Cupid was initially owned by Humor Rainbow, Inc.Ok Cupid's founders (Chris Coyne, Christian Rudder, Sam Yagan, and Max Krohn) were students at Harvard University when they gained recognition for their creation of The Spark and, later, Spark Notes.In December 2017, Ok Cupid rolled out a change that would require users to provide their real first name, in place of a pseudonym as was previously encouraged.