Most free dating websites depend on advertising revenue, using tools such as Google Ad Sense and affiliate marketing.

However, Sam Yagan describes dating sites as ideal advertising platforms because of the wealth of demographic data made available by users.

There are mixed opinions regarding the safety of online dating.

Other sites target highly specific demographics based on features like shared interests, location, religion, or relationship type.

Online dating services also differ widely in their revenue streams.

Most services also encourage members to add photos or videos to their profile.

Once a profile has been created, members can view the profiles of other members of the service, using the visible profile information to decide whether or not to initiate contact.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.The stigma associated with online dating dropped over the years and people view online dating more positively.A 2005 study of data collected by the Pew Internet & American Life Project found that individuals are more likely to use an online dating service if they use the Internet for a greater number of tasks, and less likely to use such a service if they are trusting of others.It is possible that the mode of online dating resonates with some participants' conceptual orientation towards the process of ļ¬nding a romantic partner.Introduction sites differ from the traditional online dating model, and attracted a large number of users and significant investor interest.