Good Gear Guide
In Pictures: 10 things we love about Ubuntu 13/5 t...
If I'm a Windows user sitting down at a Linux machine for the first time, the first thing that jumps out at me is that there's a column of icons to the left of the screen, instead of at the bottom where I would expect a launcher bar to be on a PC or Mac. The power button is at the top right instead of the bottom left. This is different from both the PC and the Mac. Moving the launcher bar and power buttons to familiar locations would make the desktop more approachable for Windows and Apple users.
In Pictures: 10 things we love about Ubuntu 13/5 things we hate