It appears that only about 10% of all LISTSERV(R) lists are public (at
least via the CataList db):

http://www.lsoft.com/lists/listref.html

There are about 273 public lists that have 10k or more subscribes:

http://www.lsoft.com/scripts/wl.exe?XS=10000

Only about 10 lists have 100k or more subscribers (and 4 of those seem
related to government sites):

http://www.lsoft.com/scripts/wl.exe?XS=100000

  On 8/6/2010 3:01 PM, Susan Faghani wrote:
> We wanted to share with LISTSERV(R) site administrators the link to a new article in Slate Magazine, for which the author interviewed Eric on Thursday.
>
> The Joy of Listservs
> One of the Internet's earliest innovations is still one of its best
> Slate, Farhad Manjoo, August 5, 2010
>
> http://www.slate.com/id/2262954/pagenum/all
>
> The author, Farhad Manjoo, is asking for people to share information about their favorite email lists via email or by posting a comment on the article's page on Slate, so we invite you to let him know about the LISTSERV email lists running on your sites.