>>You can subscribe to the security updates newsletter, as well as a bunch of others at https://register.microsoft.com/regsys/pic.asp?sec=0. ....
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>One other question while I'm here, perhaps someone can answer - why is it that MS has two separate "channels" for patches - one is formatted like this one: MS03-026, etc., and the others are like the KB format, 6-digit patches, sometimes with Q preceding and sometimes no Q. This is probably something I should know as an Admin, but the few people I asked aren't sure either.
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>For example, a few weeks ago, IT Security gave me a list of 4 patches to install for my Admin area, and 2 were in MS##-### format and 2 were in ###### format. Can anyone explain the different patch formats?

It confuses me too!