Doonesbury took on QR codes Thursday: Doonesbury of course, is by Garry Trudeau. Find the strip’s online home here. Previous mentions of Doonesbury here in the blog: Sept. 17, 2008: “You’re being offered a buyout. You’re one of the lucky ones.” March 2, 2009: “About to scratch myself, stand by.” June 29, 2009: “No, thanks. I hear they’re dying.” Jan. [...]