While some sites conduct background checks on members, many do not, resulting in some uncertainty around members' identities.
Opinions and usage of online dating services also differ widely.
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.
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.