Logitech Lift Vertical Ergonomic Mouse, hands on: Compact and comfortable | ZDNET
Logitech's Lift is a vertical mouse that's easier to grasp | Ars Technica
Amazon.com: Logitech MX Vertical Wireless Mouse – Advanced Ergonomic Design Reduces Muscle Strain, Control and Move Content Between 3 Windows and Apple Computers (Bluetooth or USB), Rechargeable, Graphite : Electronics
Logitech MX Vertical review: Not the mouse upgrade you're looking for | Mashable
Logitech MX Vertical Wireless Mouse – Advanced Ergonomic Design Reduces Muscle Strain, Control and Move Content Between 3 Windows and Apple Computers (Bluetooth or USB), Rechargeable, Graphite - Newegg.com
Logitech MX Vertical - product overview video - YouTube