Rick, a website developer from Columbus, Ohio, remembers his divorce nearly four years ago with an extra tinge of bitterness: His ex-wife remarried the same day to a man she met via the Internet....

Mark Brooks (www.courtlandbrooks.com) worked with Jonathan Abrams (www.jabrams.com) at Friendster before joining the FriendFinder network to help Dr Conru (www.conru.com) develop and refine the...