Denis Johnson, author of several books including Jesus' Son and the National Book Award-Winning Tree of Smoke, has the first of a four-part serial installment in Playboy's July issue. Playboy is playing it oh-so-smart and isn't providing the highly-anticipated Nobody Move work of fiction online. What's a Johnson fan to do? You can pony up and buy Playboy, or you can head on over to Jacket Copy, the lit blog at the LA Times, to......