Some sites provide free registration, but may offer services which require a monthly fee.Other sites depend on advertising for their revenue.Users of an online dating service would usually provide personal information, to enable them to search the service provider's database for other individuals.
Sites may offer additional services, such as webcasts, online chat, telephone chat (VOIP), and message boards.
Online dating or Internet dating is a personal introductory system where individuals can find and contact each other over the Internet to arrange a date, usually with the objective of developing a personal, romantic, or sexual relationship.
Online dating services usually provide unmoderated matchmaking over the Internet, through the use of personal computers or cell phones.
Other sites are more specific, based on the type of members, interests, location, or relationship desired.
Online dating sites use market metaphors to match people.