Some sites such as Ok Cupid.com, and are free and offer additional paid services in a freemium revenue model.Some sites are broad-based, with members coming from a variety of backgrounds looking for different types of relationships.
Apart from the popular social networks, there are social websites meant just for meeting and talking to someone new.
3 popular and effective websites are: Plenty of Fish, Ok Cupid, and (where you can meet someone that has a similar taste in music as you).
Online dating sites use market metaphors to match people.
Match metaphors are conceptual frameworks that allow individuals to make sense of new concepts by drawing upon familiar experiences and frame-works.
This metaphor of the marketplace – a place where people go to "shop" for potential romantic partners and to "sell" themselves in hopes of creating a successful romantic relationship – is highlighted by the layout and functionality of online dating websites.