Henge Docks - Connectors hook up when a Macbook is dropped into the vertical dock. This stand has a very small desktop footprint and is nicely designed.
Curie - Your personal posture trainer at work
OpenStanding - Custom-branded laptop stands
BodyGuide - The app that helps you self-solve aches, pain and tension
Antstand - The ultra-portable, ergonomic bamboo laptop stand
Bacca - Hand-made wooden stands for laptops & instruments