Beverly Hills-based Spark Networks, which operates a number of vertically focused, online dating sites, is claiming today that the firm has now reached two million members for the firm's Christian focused dating site, ChristianMingle.com. The firm said the site--which has been around since 2001--is now the "leading" online network for Christian singles. Spark also operates AmericanSingles.com, BlackSingles.com, SingleParentsMingle.com, and PrimeSingles.net.