A German documentary analyzed the market and uncovered multiple problems of online dating sites.
Also, this model generally allows users to switch between free and paying status at will and without having to do anything, simply providing advanced features for a set period of time whenever the according payment is received.
Ease of payment is also generally higher, with such sites accepting a variety of online currencies, letting users charge the payment to their cellular phones, etc.
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. By 2007, many prominent studies show that Baby Boomer interest in online dating have soared.
However, market share was increasingly growing by several large commercial services, including Personals. Some online dating websites provide webcam chats between members.
Some sites provide free registration, but may offer services which require a monthly fee.
Other sites depend on advertising for their revenue.
Such sites earn revenue from a mix of advertising and sale of additional options.
Online daters may have more liberal social attitudes compared to the general population in the United States.
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.
The second highest scoring, Second Life utilizes virtual worlds, message boards, chat groups and profile pages to allow people to contact in a three-dimensional environment.
Users of an online dating service would usually provide personal information, to enable them to search the service provider's database for other individuals.