A great diversity of online dating services currently exists.
Some have a broad membership base of diverse users looking for many different types of relationships.
Introduction sites differ from the traditional online dating model, and attracted a large number of users and significant investor interest.
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.
Some sites are completely free and depend on advertising for revenue.
Others utilize the freemium revenue model, offering free registration and use, with optional, paid, premium services.
Because online dating takes place in virtual space, it is possible for profile information to be misrepresented or falsified.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.Most services offer digital messaging, while others provide additional services such as webcasts, online chat, telephone chat (VOIP), and message boards.Members can constrain their interactions to the online space, or they can arrange a date to meet in person.