The three lead Olympics sponsors saw their web traffic share decrease significantly in the lead up to the games in Greece, according to the web traffic measuring company Hitwise. Site visitor figures don't equate to branding, but the lackluster online presence begs the question of whether or not Home Depot, McDonald's and Visa put their many eggs in one big fat Greek basket to the detriment of the day-to-day, top-of-mind brand metrics. Home Depot's site saw a share decrease of about six percent, McDonald's suffered a 30 percent decline and Visa saw the largest week-to-week deficit, with almost a third less share of visitors to its category.