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Finally! A Web startup, long proud of its lack of a business plan, faces the harsh realization that it has to make money. Buried in this Guardian profile of Twitter, the so-called "microblogging" startup that lets users broadcast what they're doing to friends by email, text message, and instant messenger, is its plan to make money: Advertiser-sponsored Twitter accounts. The details, after the jump:

The strategy will involve branded channels, so companies like Woot would pay to reach those very valuable, loyal users. "Rather than attach advertising to a personal communication channel," says [Twitter cofounder Evan] Williams, "we want to make it a benefit so that there are people or entities you want to follow. We think those things have potential, so as the userbase grows we'll flesh out which of those things work and the business model and revenue will fit in."

Sounds like a plan, which is more than most South Park startups can claim. One problem: How will Twitter differentiate a dedicated advertiser from an overzealous fan? Anything, though, that might curb the meaningless pronouncements of a promotion-happy startup founder is fine by us.