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1995-07-04
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Subject: USENET READERSHIP SUMMARY REPORT FOR JUN 95
USENET READERSHIP SUMMARY REPORT for Jun 95
--------------------------------------------------------------------------
This is the first article in a monthly posting series from the Network
Measurement Project at the DEC Network Systems Laboratory in Palo Alto,
California.
This survey is based on a sample of data taken from various USENET sites.
At the end of this message there is a short explanation of the measurement
techniques and the meaning of the various statistics. The messages that
follow this one show survey data sorted by various criteria.
The newsgroup volume and article counts that I post are often significantly
different from the ones posted by Rick Adams, because he includes the size of
a crossposted article in every group to which it is posted, whereas I charge
that size only to the first-named group.
The complete set of readership data (of which this is a summary) is posted
in news.lists. The software that will let your site participate in the
survey is in comp.sources.d and news.admin
Brian Reid
reid@pa.dec.com
OVERALL SUMMARY:
This Estimated
Sample for entire net
Sites: 352 350000
Fraction reporting: 0.10% 100%
Users with accounts: 155515 67231000
Netreaders: 54994 23774000
Average readers per site: 156
Percent of users who are netreaders: 35.36%
Average traffic per day (megabytes): 480.205
Average traffic per day (messages): 124064
Traffic measurement interval: last 28 days
Readership measurement interval: last 75 days
Sites used to measure propagation: 352