Russ Hunt (2013) in his STLHE-L post "Re: Searching STLHE-L archives" wrote:

"The existence of the searchable archive, all the way back to 1991, 
is, I think, a very important feature of the list."

I agree. It's unfortunate that most subscribers to TWAIN-L seem to be 
oblivious of the list archives and search engines. On page 25 of "A 
Guide to the ADLsphere: Over Eighty Academic Discussion Lists With 
Links To Their Archives & Search Engines" [Hake (2010)] I wrote:

"A. WHAT'S A LISTSERV?
LISTSERV is a trademark of L-Soft <http://www.lsoft.com/>. Although 
many discussion lists (e.g., AERA lists, EvalTalk, PhysLrnR, POD, . . 
. . [[STLHE-L]]. . . .and others - see those preceded by an asterisk 
in the APPENDIX ) utilize L-soft software and may properly be called 
"listservs" a more general term is "discussion lists" (DL's). 
Incidentally LISTSERV SOFTWARE PROVIDES MARVELOUS ARCHIVES searchable 
by keyword, author, subject, date, or any combination of those. . . . 
. . . . . . .For a catalog of LISTSERV lists see 
<http://www.lsoft.com/catalist.html>."

Richard Hake, Emeritus Professor of Physics, Indiana University
Links to Articles: <http://bit.ly/a6M5y0>
Links to Socratic Dialogue Inducing (SDI) Labs: <http://bit.ly/9nGd3M>
Academia: <http://bit.ly/a8ixxm>
Blog: <http://bit.ly/9yGsXh>
GooglePlus: <http://bit.ly/KwZ6mE>
Google Scholar:  <http://bit.ly/Wz2FP3>
Twitter: <http://bit.ly/juvd52>
Facebook: <http://on.fb.me/XI7EKm>


REFERENCES [All URL's shortened by <http://bit.ly/> and accessed on 
30 April 2013.] 
Hake, R.R. 2010. "A Guide to the ADLsphere: Over Eighty Academic 
Discussion Lists With Links To Their Archives & Search Engines," 
online as a 3.9 MB pdf at <http://bit.ly/970OZr> and as ref. 61 at 
<http://bit.ly/a6M5y0>.

Hunt, R. 2013. "Re: Searching STLHE-L archives," online on the OPEN! 
STLHE-L archives at <http://bit.ly/YbllGG>. Post of 29 Apr 2013 
14:53:21-0300 to STLHE-L.