Online dating services also differ widely in their revenue streams.
Some sites are completely free and depend on advertising for revenue.
There are mixed opinions regarding the safety of online dating.
Over 50% of research participants in a 2011 study did not view online dating as a dangerous activity, whereas 43% thought that online dating involved risk.
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.
Most services offer digital messaging, while others provide additional services such as webcasts, online chat, telephone chat (VOIP), and message boards.
In Eastern Europe, popular sites offer full access to messaging and profiles, but provide additional services for pay, such as prioritizing profile position, removing advertisements, and giving paying users access to a more advanced search engine.
Such sites earn revenue from a mix of advertising and sale of additional options.
A great diversity of online dating services currently exists.Since advertising revenues are modest compared to membership fees, this model requires a large number of page views to achieve profitability.However, Sam Yagan describes dating sites as ideal advertising platforms because of the wealth of demographic data made available by users.Because online dating takes place in virtual space, it is possible for profile information to be misrepresented or falsified.While some sites conduct background checks on members, many do not, resulting in some uncertainty around members' identities.