This is how a major newspaper dies, and is reborn online, in real-time: Shortly after 10 a.m. Pacific on Monday, I find out the fate of the 146-year-old Seattle Post-Intelligencer on — where else — Twitter. P-I “Big Blog” reporter Monica Guzman tweets the breaking news: “Publisher Roger Oglesby just announced in the P-I newsroom: Tomorrow will be our last print edition, but seattlepi.com will live on.” Guzman’s 21st-century bulletin immediately gets re-tweeted by others in the Seattle media scene.