Venus and Serena both made the top 5 list of highest earning female athletes.When it comes to making money in sports, women are narrowing the gap with men, at least at the top of the pyramid. For women, the highest-paid athletes come almost exclusively from tennis and golf, where prize money and endorsement dollars flow overwhelmingly to the brightest stars.In contrast, women?s basketball and soccer are still a long way from producing the next LeBron James or David Beckham.Golfers Annika...