Seth Godin

One of the world's most popular bloggers, Godin is a master of the thought-provoking one-liner, the grand pronouncement, and the deeply contemplative paragraph. His subject matter is online marketing, but he transcends the genre by writing like a human being -- he frequently talks about love, trust, and happiness. Also, for a guy who knows a ton about search-engine optimization, he's very funny.

From "First, ten"

"This, in two words, is the secret of the new marketing. Find ten people. Ten people who trust you/respect you/need you/listen to you...Those ten people need what you have to sell, or want it. And if they love it, you win. If they love it, they'll each find you ten more people (or a hundred or a thousand or, perhaps, just three). Repeat."