Some of these niche sites are Farmersonly.com, Millionaire Match.com, Geek2Geek.com, JDate, Dandy, Pinksofa.com, Christian Mingle and Positive Singles.
Depending on the dating site, all other members might be able to see your profile and message you.
Members set up a profile, upload photos and can then search through profiles to find a good match.
Harvard Business School graduate, Mark Brooks, has been an expert in the Internet dating business since 1998.
is a premier social-networking destination with 70 million registered users and over 2.5 billion page-views per month.
Tagged helps people keep in touch with their friends and make new ones.
is one of the biggest dating services in the world.
It launched in 1995 and is now available in 24 different countries.
Mingle2 is a membership service of which users pay to be a part.
It was originally a service called Just Say Hi, but the site transitioned to Mingle2 in 2008 and now works with many populations of singles.
Our is a unique dating site specifically catered to people over 50.
The company focuses on the interests of people in a certain age range who want a place to feel confident and comfortable while seeking a potential date. It uses a compatibility matching system to link up people with complementary personalities and lifestyles and has worked with millions of users over the past 15 years.
More traditional sites may offer anything from a simple search to a highly specific advanced search.