Some have a broad membership base of diverse users looking for many different types of relationships.
Other sites target highly specific demographics based on features like shared interests, location, religion, or relationship type.
Others utilize the freemium revenue model, offering free registration and use, with optional, paid, premium services.
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.
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.
At the end of November 2004, there were 844 lifestyle and dating sites, a 38% increase since the start of the year, according to Hitwise Inc.
While Christian single interracial dating or married couples can live peacefully in most urban societies of the world, they may still be stigmatized in rural areas, and sadly even within the confines of their own church and family.
Therefore, any single Christian thinking about interracial dating should prepare for success by asking themselves the following questions: Openly and honestly go over the above questions first by yourself, and then together with your interracial dating interest.
Finally, despite the increase in the number of interracial dating singles, many find it difficult to meet others in their everyday walk of life.
This one of the several reasons why online interracial dating sites like e Harmony Dating Service have become popular.
Opinions and usage of online dating services also differ widely.
A 2005 study of data collected by the Pew Internet & American Life Project found that individuals are more likely to use an online dating service if they use the Internet for a greater number of tasks, and less likely to use such a service if they are trusting of others.
Online dating services allow users to become "members" by creating a profile and uploading personal information including (but not limited to) age, gender, sexual orientation, location, and appearance.