We don't use any whiteboarding questions. There is a coding component of our interview process, but it's all done on a laptop.
Our goal is to test like you work, so you have an IDE, access to Google and StackOverflow, and when we ask you to implement an algorithm (like QuickSort) we link to the Wikipedia page in the instructions.
We've found that the ability to memorize is basically useless is identifying good candidates, but the ability to implement when given proper instructions is really valuable.