But Harvard-trained mathematician and entrepreneur Sam Yagan thinks fee-based online dating services are doomed.
of Dallas, a business unit of IAC/Inter Active Corp., is also making some moves.
Prices at match.com, the leading dating site with about 15 million members worldwide, range up to about $30 per month.
The lab is undertaking a five-year study of married couples to determine the traits that make for long-term bliss.
The lessons learned will help e Harmony improve its matching criteria and find better partners for its members.
For $49.95, couples get a questionnaire that helps identify problems in their marriage.