Can I find the number of subscribers to r-help and r SIG mailing lists?

Dear Folks--
Is there a reasonably straightforward way for me to find the number of
subscribers

That's not easily accessed by any publicly avaiable method I know but I can give the current count:

7783 Non-digested Members of R-help:
7563 Digested Members of R-help:

or distinct posters to the r-help list

Perhaps look at MarkMail or do some work with the various Archives.

and the various r SIG
lists? Ideally I would like a time series from founding, but unadorned
current membership numbers would still be useful, as would founding dates
for active SIGs.

Have you done any searching?  I believe earlier figures have been offered in prior postings and blogs about R and remember a recently published article cited here: "How Social Q&A Sites are Changing Knowledge Sharing in Open Source Software Communities". 

You should send private inquiries to the moderators or owners of those lists. (You should not expect them to all be reading R-help.)

http://www.r-project.org/mail.html

There was recently a discussion about StackOverflow's impact. SO gives the number of its registered users that are "following" [r] = 5.3K.

Peace, andrewH
-- 
J. Andrew Hoerner
Director, Sustainable Economics Program
Redefining Progress
(510) 507-4820

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