I have a bunch listed at:
  http://union.ncsa.uiuc.edu/HyperNews/get/hypernews/related.html
If you find more, let me know so I can add them.
 > I am very much interested in exploring the possibilities of 
 > establishing such a feature at my local web site. The most impressive 
 > example I have seen, has been Time Magazines' web site. 
Where is Time, btw?
 > I imagine the 
 > task of implementing an electronical  conferencing system involves 
 > Perl scripts or other programming efforts. Does anybody know of 
 > available examples on how to conduct this ???
You can get source to HyperNews at:
  http://union.ncsa.uiuc.edu/HyperNews/get/hypernews/source.html
Daniel LaLiberte (liberte@ncsa.uiuc.edu)
National Center for Supercomputing Applications
http://union.ncsa.uiuc.edu/~liberte/