From: reid@decwrl.dec.com (Brian Reid)
Newsgroups: news.lists,news.groups
Subject: TOP 40 NEWSGROUPS IN ORDER BY PER-READER COST (DEC 92)
Date: 1 Jan 1993 20:42:15 GMT
Organization: DEC Network Systems Laboratory, Palo Alto, Calif., USA
NNTP-Posting-Host: torrey.pa.dec.com
Keywords: arbitron, statistics
Originator: reid@torrey.pa.dec.com

TOP 40 NEWSGROUPS IN ORDER BY PER-READER COST
A companion posting explains the statistics and the algorithms that produced
them.

        +-- Estimated total number of people who read the group, worldwide.
        |     +-- Actual number of readers in sampled population
        |     |     +-- Propagation: how many sites receive this group at all
        |     |     |      +-- Recent traffic (messages per month)
        |     |     |      |      +-- Recent traffic (kilobytes per month)
        |     |     |      |      |      +-- Crossposting percentage
        |     |     |      |      |      |    +-- Cost ratio: $US/month/rdr
        |     |     |      |      |      |    |      +-- Share: % of newsrders
        |     |     |      |      |      |    |      |   who read this group.
        V     V     V      V      V      V    V      V
   1   8100   226   41%  5134 18649.3     0%  1.80   0.5%  bionet.molbio.genbank.updates 
   2 120000  3316   56%  2216 98591.1     7%  0.85   7.1%  alt.binaries.pictures.erotica 
   3  23000   650   77%   268 12235.0     0%  0.76   1.4%  comp.binaries.os2 
   4  69000  1922   58%  1088 42227.4     5%  0.66   4.1%  alt.binaries.pictures.misc 
   5  38000  1053   57%   480 21059.2     2%  0.58   2.2%  alt.binaries.sounds.misc 
   6  16000   449   71%   826  6800.1     9%  0.55   1.0%  misc.activism.progressive 
   7  22000   607   72%  2296  6403.9    16%  0.39   1.3%  comp.os.os2.advocacy 
   8  24000   666   84%   258  5710.3     0%  0.37   1.4%  comp.mail.maps 
   9  10000   286   67%   133  2743.3    16%  0.34   0.6%  rec.roller-coaster 
  10  32000   885   71%  3130  7652.7    33%  0.31   1.9%  talk.abortion 
  11  18000   497   78%   118  3936.5     0%  0.31   1.1%  comp.binaries.apple2 
  12  25000   709   78%  2346  4693.3    14%  0.27   1.5%  comp.sys.amiga.advocacy 
  13  19000   517   58%  1624  4841.1    62%  0.27   1.1%  alt.rush-limbaugh 
  14   3500    98   31%   640  1596.6     0%  0.26   0.2%  rec.games.mecha 
  15   2600    72   18%  1722  1924.2     0%  0.25   0.2%  k12.chat.senior 
  16  29000   801   72%  2875  5343.1     1%  0.24   1.7%  rec.sport.football.pro 
  17   1700    48   11%   715  1972.3    11%  0.24   0.1%  tor.news.stats 
  18   2600    73   14%    75  2200.2     0%  0.22   0.2%  opinions.supreme-court 
  19  47000  1315   81%   136  6640.6     0%  0.21   2.8%  comp.binaries.mac 
  20  34000   949   71%  1783  5341.3    19%  0.21   2.0%  talk.religion.misc 
  21  25000   703   71%  1373  3975.0    23%  0.21   1.5%  talk.politics.mideast 
  22  24000   662   58%   945  4820.9    40%  0.21   1.4%  alt.fan.rush-limbaugh 
  23  39000  1087   77%  3620  5608.9     4%  0.20   2.3%  comp.os.linux 
  24  29000   820   77%  2034  4139.6     0%  0.20   1.7%  rec.arts.tv.soaps 
  25  40000  1105   69%   642  6001.3    57%  0.19   2.4%  alt.conspiracy 
  26  38000  1065   82%  2746  4664.3     7%  0.19   2.3%  comp.os.os2.misc 
  27  11000   317   56%   670  1997.3     4%  0.19   0.7%  talk.politics.animals 
  28   1900    52   30%   341   620.9     2%  0.18   0.1%  rec.arts.marching.misc 
  29  29000   817   83%  1662  3181.2     3%  0.17   1.7%  comp.sys.atari.st 
  30  27000   760   75%  1249  3337.5     3%  0.17   1.6%  rec.radio.amateur.misc 
  31  24000   671   64%  1676  3462.5     0%  0.17   1.4%  alt.callahans 
  32  33000   917   74%  1756  3788.0     8%  0.16   2.0%  soc.culture.jewish 
  33  28000   784   74%   776  3270.7    22%  0.16   1.7%  soc.culture.turkish 
  34  28000   780   77%  1209  3092.9     4%  0.16   1.7%  rec.arts.anime 
  35  20000   547   70%   769  2438.8     1%  0.16   1.2%  soc.culture.vietnamese 
  36   9400   261   51%   985  1564.5     5%  0.16   0.6%  alt.tv.mst3k 
  37  58000  1611   75%  4268  6511.5     4%  0.15   3.4%  comp.sys.ibm.pc.games 
  38  27000   752   79%  1411  2697.7    12%  0.15   1.6%  comp.sys.amiga.programmer 
  39  19000   541   69%   875  2288.0     9%  0.15   1.2%  talk.origins 
  40  18000   497   59%  1237  2425.1     2%  0.15   1.1%  alt.romance.chat