On Wed, 16 Dec 2009 00:12:23 EST, Michael Wishart said:
> Only a list of users who have registered on the web interface with a personal password.

Unfortunately, that's still one of those "What number did you want?" things -
the list of users who *have* a personal password, or the ones that did it *via
the web interface* as opposed to via e-mail? (And yes, the second list may
in fact be very interesting if you're trying to evaluate relative usage of
the web and e-mail interfaces).

(Often, a quick summary of the problem you're trying to solve helps a lot.
"We're trying to contact all our users with personal passwords and tell them
about our new password requirements" is a lot different than "We're trying to
figure out which of our user groups prefer the web interface and which like
the e-mail interface"...)