DALLAS, Sept. 22 /PRNewswire/ -- In celebration of National Singles Week, Chemistry.com announced today that anyone who visits http://www.chemistry.com/offer/7daysfree?bannerid=2008972, from September 22 through September 27 will receive a free seven-day membership to Chemistry.com. (Logo: http://www.newscom.com/cgi-bin/prnh/20080613/LAF006LOGO) "National Singles Week is the time of year that the singles across the country receive the recognition they deserve," said Mandy Ginsberg, senior vice president and general manager of Chemistry.com. "We are proud to offer all singles a free seven-day membership to one of the fastest growing relationship sites in the country where anyone has the chance to find a lasting relationship." National Singles Week was started in Ohio in 1984 by the Buckeye Singles Council to appreciate the growing ranks of unmarried Americans, who are now 96 million strong, or 43 percent of the U.S. population age 15 or older, according to the U.S. Census Bureau. After just two years, Chemistry.com has become a leading online relationship site, based upon decades of research into human attraction by Dr. Helen Fisher, an acclaimed biological anthropologist. Dr. Fisher continues to conduct her research today and uses her findings to capture deep personality characteristics that yield chemistry-inspired matches. Chemistry.com's "Come As You Are" mantra has created a destination that is attracting millions of diverse and creative people who are looking for the kind of relationship that fits their needs and their life-philosophy -- whether it's a marriage, long-term commitment, or romance. Today, singles everywhere may redeem seven free days on Chemistry.com by visiting http://www.chemistry.com/offer/7daysfree?bannerid=2008972. About Chemistry.com Launched by Match.com in February 2006, Chemistry.com was created to bring together independent-thinking, confident, diverse singles that are serious about finding a meaningful relationship. Based on the research of renowned biological anthropologist Dr. Helen Fisher, Chemistry.com uses a proprietary test to predict which two people are most likely to experience a life-changing jolt of chemistry. This approach, combined with its "come as you are" philosophy and private matching technique, makes Chemistry.com the ideal place to find the relationship that is right for each individual, whether it's marriage, romance, a partnership or a long-term commitment. Chemistry.com is an operating business of IAC (Nasdaq: IACI).