BusinessWeek's forthcoming Chicago edition is but another advance toward local editorial, in print and online. Xconomy.com, which tracks Boston's tech scene, seems off to a good start. The glass is half-full.
Facebook may be hot but it's a horizontal play. Think vertical. Social networks AfterZiffDavis, AfterIDG and AfterCMP -- formed by former members of these publishers -- illustrate the power of vertical social nets. And the more vertical they are, the better they'll fare with members and advertisers.
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