I don't think I've put any thought about having my keyboard(s) raised or flat on my desk. So I started wondering, for example, how does it impact on typing speed and accuracy, how does it relate to ergonomy... What's your cup of tea - raised or flat? Why?
Quoting http://www.rsiprevention.com/rsi_prevention.php:
A gaming focused (apparently?) forum made a poll:Many people believe that, because cheap keyboards have a height adjustment at the rear of the keyboard, the back of the keyboard should be raised when typing.
This is not true.
The correct keyboard adjustment is one where the keyboard is flat and at or below elbow level. This position makes it easiest to type with your wrists in the neutral position. If you can't have the keyboard at the correct height, you should choose the adjustment which keeps your wrists as near to the neutral position as possible
http://www.teamliquid.net/blogs/viewblo ... _id=261554