Change: ", requiring that users send in saliva samples. The physical samples, after being sent to a lab (with a two-week turn around time) for DNA   View changes from previous version. (Word count: 931)

Change: long-term psychology-based matching site, conceived in 1997 by American psychologist Neil Warren, the push to bring a level of acadamia or science-based matching to online dating has emerged, in sites such as eChemistry (2003), Chemistry.com (2006), and ScientificMatch (2007). In 2004, there were 844 lifestyle   View changes from previous version. (Word count: 724)

Change: such as xSeeksy.com, . 2000s Into the new millennium, Internet-based dating site conceptions have since flourished. In 2004, there were 844 lifestyle and dating sites, a 38 percent increase over the year prior.   View changes from previous version. (Word count: 675)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 679)

Change:  E-mail predates the inception of the Internet, and was in fact a crucial tool in creating the Internet. MIT first demonstrated the Compatible Time-Sharing System   View changes from previous version. (Word count: 679)