eHarmony UK - online compatibility matching system for dating
What they say:"eHarmony launched in the United States in 2000 and is now the Internet's No. 1 trusted relationship services provider. eHarmony's patented Compatibility Matching System® allows eHarmony members to be matched with compatible persons with whom they are likely to enjoy a long-term relationship.
Today, an average of 236 eHarmony members marry every day in the United States as a result of being matched on the site - nearly 3% of all US marriages. eHarmony is available in the United Kingdom, United States, Canada and Australia."