McMasters' do not have any pecuniary interest in Skype. We use them because one of the young people in our office told us about them and when we tested their system it was easy to use. We would not mind having shares in Skype, but sadly we don't.
While the organization is well-known, and thus is likely to ensure that optimum internet security is maintained at all times, we can't guarantee that your experience with Skype will be problem-free.
If you have another free service that you would like to use (such as MSN Messenger), we can accommodate this as well.