Examples within this category include Jdate for Jewish singles, Geek2Geek and Farmersonly for farmers and the people who want to meet them.
It launched in 1995 and is now available in 24 different countries.
Members set up a profile, upload photos and can then search through profiles to find a good match. 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.
Some mobile apps will match you with people based on criteria, including age, gender, and geographic proximity.
More traditional sites may offer anything from a simple search to a highly specific advanced search.
Online dating has grown in popularity to the point where there is almost no social stigma attached to it.
With an estimated 1,000 online dating sites in existence, however, it can be hard to sift through all the options and decide which is the best site.
Depending on the dating site, all other members might be able to see your profile and message you.
Check to see what safeguards are put in place by the site, and which ones you can enable to limit those who sees your profile.
Creating online dating profiles helps consumers carefully consider potential matches.
Likewise, evaluating a dating site before using it is essential, and it will bring you that much closer to finding a good match.
OKCupid is one of the most popular dating sites and is free to sign up initially.