The results of this week's Billboard magazine blues chart don't vary much from last week. George Thorogood still sits atop the chart for the week ending June 11, 2011, Gregg Allman continues to hold down number two, and Smokin' Joe Bonamassa has a full-nelson grip on the third chart spot. Delta legend Robert Johnson moved up a couple of numbers, and the duo of Ray Manzarek and Roy Rogers make their debut on the chart with their Blind Pig album Translucent Blues. Here are this week's Top Ten blues albums, ranked by sales: