As online dating's population becomes larger, sites with specific demographics are becoming more popular as a way to narrow the pool of potential matches.
Most sites allow members to upload photos or videos of themselves and browse the photos and videos of others.
Sites may offer additional services, such as webcasts, online chat, telephone chat (VOIP), and message boards.
Research about social networking reveals that the online dating services driven by subscriptions offer the least amount of social networking opportunities.
The dating services modeled on the free-at-the-point-of-use model scored much higher as many of them utilized the Circle of Friends social networking method and a wider number of online community genres.
The highest scoring dating service was Facebook, which uses the personal homepage genre, the message board genre, the weblog and directory genre, as well as utilizing the Circle of Friends.