A "VIRTUAL SERVER" is a part (properly, a partition or logical segment) of a physical server, or 'real' computer system being used to serve a network (or other function, e.g., print server). What I gather is that Webmaster (and Tech Guru) Ken has partitioned their server to handle multiple functions, one of which is "Luxury Cruise Talk".
The other element that is most likely partitioned into two or more "virtual" parts is the internet connection they use. For example, lets say Brown & Keene has a T-1 connection to the internet. That is 1.544 mega-hertz, just over one and a half million cycles (=hertz) per second, also equal to 24 voice connections or 24 dial-up internet connections simultaneously! Some part of this most likely dedicated to "Luxury Cruise Talk". Just so people know, this is not an inexpensive proposition, and is a real and substantial contribution to our communication with one another.
And that is totally enough from this prof today!