Many of the most common match dating sites today work on matching people by personality.
The theory is that you are more likely to find a long-term partner if that person shares your common personality traits, rather than trying to find the perfect person by simply looking at pictures.
Some age-match dating sites include Senior Friend Finder, Age Match, Senior Date Finder and Silver Singles.
There are many other types of match dating sites, catering to specific tastes.
More than 67 percent of those on the site hold at the very least a bachelor's degree with many of them holding a master's and doctorate.
This dating site uses a unique personality test that members take upon sign-up in order to ensure that the people that you are matched with are people who have higher compatibility rates to ensure greater efficiency when using the site.
Some examples of ethnic dating sites include Interracial People Meet, Soul Singles and Urban Soulmate.
Matching sites based on faith and religion, help to put single people in touch with other singles of the same religious beliefs.
Military aims to put people in touch with single servicemen and women, stationed all over the world.
Religion can be a very important part of people's lives, so this type of dating site ensures you meet people who share your beliefs.
Some examples of religious dating sites include Catholic Mingle, Christian Cafe, JDate for Jewish singles and Muslima.com, a serious dating site for Muslims looking for marriage.
These sites include a very in-depth questionnaire about your personality, in order to find your best matches.
Of course many people believe that opposites attract, but for a lasting relationship, it is usually helpful to share a few personality traits.
Sugar is a site that matches single women with wealthy men and Millionaire ensures the singles you meet are millionaires, whilst Nudist is an online networking and dating site for nudists.