Here is the distillation responses I have gotten so far.  To cite from
the Internet (say Email for example) it looks like the concensus is:
 
Author, _Subject_Line_, personal communication via Email from
     Museum-l,m/d/y.
 
Or to keep it within the current "Curator" format:
 
Author. (m/d/y).  _Subject_Line_.  Personal communication vial Email
     from Museum-l.
 
Any opinions on that?  There should be a standardized method as this
means of communication will only get more widespread.  Please post me
your opinions and thoughts, my Email address is :
 
                        [log in to unmask]
 
Patricia Kirkland
University of Nebraska
Dept of Museum Studies (graduate Student)