Comparative traffic

AdWeek took a long look at Burger King's viral marketing efforts to try to figure out if they work. To date, effectiveness figures have been relegated to traffic figures, such as MarketingVOX's early report of McDonald's versus Burger King site traffic after the initial seeding of the viral campaign. AdWeek got to the meat of the matter by consulting a retail consultancy: Burger King's sales saw significant increases each month since October, rising seven to 14 percent compared to the same month the year before.