Rare sighting: a business model for Twitter?

From today’s NYTimes.

A new partnership between Citysearch and Twitter offers some clues about what Twitter’s long-awaited paid accounts for businesses might look like.

Citysearch announced Monday that it will provide the businesses on its site a few tools to help them make use of Twitter — and said that more tools would be coming soon, including some that sound a lot like what Twitter has repeatedly said it will offer businesses for a fee…