Benjamin Keith Johnson wrote:
In hindsight, I can see how motivations in users might vary across nationality with regard to issues like the development of article NPOV, though.
According to this (http://jcmc.indiana.edu/vol12/issue1/pfeil.html) recent paper, they certainly are important. I will echo Gerard and suggest using Skype. As for IRB... they are evil, but hopefully you can deal with them.
Good luck,