Here's the official advertisement:
Participate in a Tablet PC user study!
This is a computer user interface research study is being conducted at the University of Washington. Its purpose is to compare different methods of erasing ink on Tablet PCs. You will be asked to erase digital ink using several different methods. The entire session will take approximately 60-80 minutes. You are eligible to participate if you have no more than 1 hour of experience inking on a Tablet PC and if you do not have any visual difficulty distinguishing dark red and light green (you will be screened for this if you choose to participate). Participation is voluntary. We cannot assure the confidentiality of any information sent by e-mail.
To take part, email me, Sandra B. Fan at sbfan @ u.wash...etc. the usual.