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.

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.

Such sites earn revenue from a mix of advertising and sale of additional options.

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.

Still others rely solely on paid membership subscriptions.

Opinions and usage of online dating services also differ widely.

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.

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