If Gay Talese had a blog, he'd be all about promoting Last Call at Elaine's, Brian McDonald's memoir of bartending at the legendary old-school New York intellectual hang-out. Elaine's was to the '60s and '70s what the Magician was to three years ago. That means that McDonald is as connected to old-school media types as you can get without a masthead position at the New York Review of Books. So even though this book appears to be an account of an era only a few dozen people could care about it, it's the right few dozen people. Brian McDonald is Sloane Crosley for The Olds. At a reading last week on the Upper East Side, the book sold out, presumably to its entire audience.