On Twitter, Mourning the Wit and the Wisdom of Nora Ephron SHE could have mastered the medium if she had chosen to, tailored as it is to pithy turns of phrase and incisive observations. So it is perhaps fitting that New Yorkers turned to Twitter in the days after Nora Ephron's death on Tuesday to say a thousand different ways: There was no one quite like her. They remembered her as a foodie and a friend, a modern Dorothy Parker and, perhaps most forcefully, an essential chronicler of her city. "Nora Ephron always loved a good New York story," the mayor's account, @MikeBloomberg, posted on Tuesday, "and she could tell them like no one else." Two such stories became trending topics shortly after her death: the movies "When Harry Met Sally...," which Ms. Ephron wrote, and "You've Got Mail," which she co-wrote and directed. The signature line from the former film - and almost certainly the most famous sentence ever uttered inside a deli - was repeated most widely: "I'll have what she's having." David Newhouse of Bushwick, Brooklyn, whose account is @dbn223, said Ms. Ephron "taught me to love New York, Rom Coms and good writing." Even Twitter's typical clowns and grouches paused briefly to play it straight. "You're going to hear a lot of stories about all the people Nora Ephron helped," the comedian Andy Borowitz, @BorowitzReport, wrote. They're all true. Ms. Ephron's friendships in the entertainment world appeared to span generations. @kevin_nealon, the actor and comedian, recalled auditioning for her 20 years ago. "Didn't get the part but she sent me a thank-you note," he wrote. I'll always remember that and you, Nora. @lenadunham, the 26-year-old creator and star of HBO's "Girls," posted once from her account on Wednesday. "Today I think only of Nora," she wrote. Her work will forever be one of the greatest gifts of my life, her friendship even more so. A remembrance by Ms. Dunham was published on The New Yorker's Web site on Thursday. For many of those who did not know Ms. Ephron personally, her zeal for food seemed to generate a bond. @julieedow wrote that Ms. Ephron proved she could "care about feminism, food and fashion with the same eye. And helped me measure purchases in cappuccinos. Many passed along this piece of sage counsel from Ms. Ephron: "I don't think any day is worth living," she said, "without thinking about what you're going to eat next at all times." Of course, Ms. Ephron's most indelible lines, particularly her famous flourish from "When Harry Met Sally...," had resonated with Twitter audiences long before her death. One New Yorker, the aptly named @sallysimply, reported that the film had become something of a lifeline. "Best thing ever," she wrote. "You are suffering from insomnia and your friend is all, "I'll come over and we can watch "When Harry Met Sally." " " That message was posted on June 20. Follow and send comments to @mattfleg.