The stigma associated with online dating dropped over the years and people view online dating more positively.Further, the 2016 Pew Research Center's survey reveals that the usage of online dating sites by American adults increased from 9% in 2013, to 12% in 2015.In 2008, a variation of the online dating model emerged in the form of introduction sites, where members have to search and contact other members, who introduce them to other members whom they deem compatible.Introduction sites differ from the traditional online dating model, and attracted a large number of users and significant investor interest.It is possible that the mode of online dating resonates with some participants' conceptual orientation towards the process of ﬁnding a romantic partner.
However, Sam Yagan describes dating sites as ideal advertising platforms because of the wealth of demographic data made available by users.
This model also allows users to switch between free and paying status at will, with sites accepting a variety of online currencies and payment options.
Most free dating websites depend on advertising revenue, using tools such as Google Ad Sense and affiliate marketing.
Under this metaphor, members of a given service can both "shop" for potential relationship partners and "sell" themselves in hopes of finding a successful match.
At the end of November 2004, there were 844 lifestyle and dating sites, a 38% increase since the start of the year, according to Hitwise Inc.