Online dating services also differ widely in their revenue streams.
Most services also encourage members to add photos or videos to their profile.
Here's the basic idea- speed dating for the 21st century.
You register for a free account, and then using your microphone or webcam and microphone, you join or create short chat sessions.
Others utilize the freemium revenue model, offering free registration and use, with optional, paid, premium services.
Still others rely solely on paid membership subscriptions.