WASHINGTON POST - May 26 - OpenMinded is a new non-monogamous dating site. The site's founder, Brandon Wade, expects swingers, polysexuals and experimental 20-somethings to use his site. "If you look at marriage, it developed as a survival strategy and a means of raising kids," Wade said. "But relationships are no longer a necessary component of life." There's a long history of married men sleeping around, says Helen Fisher, a biological anthropologist and one of the world’s leading relationship researchers. "What is new is that women are now also being more adulterous - and so people are beginning to be more open about it."