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With its 140-character limit, Twitter is blooming with haiku — or twaiku, as some call them. There are Twitter feeds for NASCAR haiku, cat haiku, zombie haiku and user-interface haiku.

There are haiku competitions and campaigns. Jimmy Kimmel offered tickets to his show to whoever tweeted the best haiku on the final episode of Lost. The British rail company asked passengers to tweet their haiku on the theme of the London summer, a topic that’s nicely suited to a poem of three short lines…