(v0.6) XFinger - Win File/Finger/Winsock
XFINGER reads users and hosts from a config
file, and fingers the hosts every 40 seconds
(default). If the users are logging on the
hosts you specified, XFINGER will notify you
by displaying that information on a windows(
and optionally, ring a bell). By doing this. 
you can know if specified users are logging 
in or out, when, and where.
Freeware
George Xie, q7f192@ugrad.cs.ubc.ca