It's been eight years since Marshall Mathers released The Eminem Show , the best-selling album of 2002. It was followed later that year by the semi-autobiographical film 8 Mile , which earned Em an Oscar. And of course, earlier this year, Eminem hit a career milestone when I wrote about him on Copyblogger . He stood at the edge of something truly amazing. And then the other shoe dropped. His next album Encore was lazy,