Others employ dozens of scientists to create sophisticated, top-secret algorithms to match customers with similar personality traits (as opposed to shared interests, which are a far less significant predictor of compatibility), ignoring the adage “opposites attract”. “One suspects a lot of their claims are hype,” says Professor Dunbar.
“Do they really know what the criteria are that make a successful long-term relationship, when it’s not something that the scientists still know that much about?
“I’d hazard that your chances of finding love through one of these sites is probably about 10 to 15 percentage points greater than through traditional means.” For all the claims of success, some experts warn that the online dating is making monogamy more, rather than less, elusive.
“I’ve found a tendency for the 'grass is greener mentality’ to set in, where the person they’ve set their sights on seems great until they decide to check out 'just a few more profiles’ and spot an 'even better’ singleton,” warns relationship expert Dr Pam Spurr, author of Love Academy.
Moreover, couples who’d first met face-to-face reported slightly less satisfaction with their relationships than their online counterparts.
Professor John Cacioppo, who led the study, said the sheer number of available potential partners online could be among the reasons for the results.
Yes, according to psychologists at Chicago University who last week reported that marriages that begin online – whether on an online dating site or via social networking sites like Facebook – stood a greater chance of success than those that began in the “real world”.But in the 20th century this all changed, with young people deciding they wanted to be in charge of their own domestic destinies.Matchmakers were viewed as hook-nosed crones from Fiddler on the Roof or pushy Mrs Bennet at the Pemberley ball.“I only wish I’d signed up years earlier, then Mark and I might have met sooner.Nobody’s perfect, but for me, he’s as close as it comes.” Follow Telegraph World News on Twitter As the internet plays an ever greater part in our social lives, with sites such as Facebook helping us to keep in touch with our friends, it's inevitable that we also use it to help us run our love lives as well. Cash-rich, time-poor professionals who already do everything from shop to socialise online, now see a search engine as the obvious gateway to love.Scarred by their parents’ (or their own) divorces, this generation approaches affairs of the heart with the same pragmatism as it might buying a car or booking a holiday.I filled forms about my interests, my opinions and my personal goals – which was having a family – something I’d been too frightened to mention to my exes in the early days for fear of scaring them off.“But the men I was introduced to were told what I wanted and shared those dreams. From the off we were on the same page and then it was only a matter of finding someone I also found physically attractive and that was Mark, the third man I met.” Wilkinson is far from alone.From Romeo and Juliet, to dashing Mr Rochester choosing plain Jane Eyre, we celebrated stories of Cupid’s dart striking randomly.But since 1995 when the first online dating site was launched, the tables have completely turned.