There’s no point in wasting any more time — or text characters. I’m making it official and declaring this season the Summer of Twitter. You can thank me later. The declaration isn’t just related to the short message service’s use regarding some of the biggest breaking news stories of the past three months, including the Iranian protests and Michael Jackson’s death. It also isn’t just about those stories that have Twitter as a central character, so to speak: the cybertheft of internal Twitter company documents, or this week’s Horizon Realty story in Chicago.