Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!ulysses!andys
From: andys@ulysses.homer.nj.att.com (Andy Sherman)
Newsgroups: news.misc
Subject: Re: Statistics regarding commercial sites on Usenet
Message-ID: <11661@ulysses.homer.nj.att.com>
Date: 13 Jun 89 21:24:32 GMT
References: <1989Jun13.064138.14675@twwells.com>
Sender: netnews@ulysses.homer.nj.att.com
Reply-To: andys@ulysses.homer.nj.att.com (Andy Sherman)
Organization: AT&T Bell Laboratories - Murray Hill, NJ
Lines: 20
In-reply-to: bill@twwells.com (T. William Wells)

In article <1989Jun13.064138.14675@twwells.com>, bill@twwells (T. William Wells) writes:
>I did a bit of counting this evening. I took all the #O lines from
>my mail maps, did a sort -u, and then classified them as
>commercial and noncommercial. The classification had to be kind of
>rough, since it was in many cases difficult or impossible to tell
>the difference; however, the results are unambiguous:
>
>	3940    70% commercial names
>	1727    30% noncommercial names
>

This may understate it.  Some commercial domains don't put all their
hosts in the mail maps.  They tell you the gateways to their domain or
a few critical subdomains, and hide the topology.  Therefore, there
may be quite a few more hosts that you don't see.
-- 
Andy Sherman/AT&T Bell Laboratories/Murray Hill, NJ           *NEW ADDRESS*
AUDIBLE:  (201) 582-5928                                      *NEW PHONE*
READABLE: andys@ulysses.ATT.COM  or att!ulysses!andys         *NEW EMAIL*
The views and opinions are my own.  Who else would want them? *OLD DISCLAIMER*