Who matters now?

In the year of the blogger, Arianna Huffington has emerged as the queen of the blogs. Her Huffington Post, launched just two years ago to a largely skeptical public, has become the Web's most influential political site, attracting about 3.4 million unique visitors a month -- as well as $5 million in venture capital funding. What many chalked up as a doomed hobby has turned it into a real business.

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Tell us who you think matters now -- and why