A New York Time Article written by Natasha Singer helps explain why online dating site are fast trends in helping user find their compatible mate. According to "Better Loving through Chemistry" , many website actually implement a scientific structure in matching their clients with potential suitor. One of the most outrageous is calls ScientificMatch.com. This site actually uses DNA testing to determine romantic chemistry base on the individual genetic make -up. The ideas for this web site actually result from research which suggested women are more attracted to smell of men who are different from their own. Unfortunately, the sites charges user $1,995.95 for a lifetime membership, granted they actually provide cheek swabbing kit, DNA processing, background check and verification of age and marital status. The Today Show elaborates how the processes work. First DNA is collect and the Major Histocompatibilty Complex immune system genes are compared. If all 3 pair of the alleles are different a couple is consider a perfect match. This is an expensive solution, but don't worry. Sites such as Chemistry.com and it founder Match.com provide a reasonably price range that try to get to the heart of attraction. Instead of using DNA testing they base on traits of temperament. Here, the ideas similarity such as values, family background and social styles strongly accounted for a match. This upheld the Lilienfeld's claims that similarity paves the way for mutual understanding in the long run.