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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.
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 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.
That is, online dating sites use the conceptual framework of a "marketplace metaphor" to help people find potential matches, with layouts and functionalities that make it easy to quickly browse and select profiles in a manner similar to how one might browse an online store.
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.