Android app Snap Tube is generating both clicks and purchases under the covers. The military has retired the 8-inch floppy disk. Yahoo Groups is downsizing its offering. Imaging resource will be closing down early next year. Benjamin Rockwell on Penetration Testing and Ethical Hacking. Hank Kee on Turbo Tax fighting to stop Americans from filing their taxes for free. Marty Winston on Living Dangerously and Cleverly with Power Tools.