Steven Johnson interviews Brewster Kahle. Encouraging signs derived from Alexa's traffic data show that, while the top 10 web sites get 20 percent of the traffic ("an astounding concentration of power that we probably haven't seen since the Roman Empire"), they're not getting it all. There's still room for the small player: "...there are niche players that are still important, that are down in the hundred thousand to million ranking of Web sites, which is the kind of the original dream of the Web -- that, if you have something good to say, you'll find your audience, and they'll find you."