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1 PM Registered Users and Participation
February 2007:
There are currently 16058 registered users, which can be broken down as follows:

14263 of them (88%) have done nothing — not posted or answered a question, filed a correction, or authored an entry

531 of them (3%) have only asked one question

1021 of them (6%) have asked more than one question or filed a correction, but not contributed an entry

241 of them (1.5%) own at least one entry. Of these, 59 (0.4%) own 90% of the entries.
June 2007:
There are currently 17409 registered users, which can be broken down as follows:

15463 of them (88%) have done nothing — not posted or answered a question, filed a correction, or authored an entry

585 of them (3%) have only asked one question

1105 of them (6%) have asked more than one question or filed a correction, but not contributed an entry

256 of them (1.5%) own at least one entry. Of these, 58 (0.3%) own 90% of the entries.

The entropy of the distribution of authors is 4.034, which means that it is as if only 56.5 people had contributed 118 entries each
2 Web Site Readership
Usage stats for the web server are generated periodically and placed here. From this you can see that depending on month, US .edu traffic fluctuates between 5 and 15% (over the past year). .com and .net traffic is also well over half the traffic. Traffic from nonUS countries is around 2025%. This only lets us place a lower bound on academic traffic, but it would be reasonable to estimate that students of some sort represent 2550% at any given time (many of them are likely .net’s, .com’s, and the nonUS country codes).
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