A few people have made comments to the effect that the number of mailing lists must not grow to be too large. But I think it would be a shame to decide this by accident. it seems to me that a workable alternative would be to assume that there would be a few big, important mailing lists, but also that these would spin off small, temporary mailing lists whose purpose was to resolve some side issue and then present the conclusion back to the main group. I suggested to Nat that we could set up a web page or some other mechanism that would make it very easy to create a mailing list quickly and then to destroy it again later. (I would volunteer for this if necessary.) The technical issues are not difficult, because of EZMLM. The security issues also do not seem to be difficult. I would be interested in whether this seems to be a good idea.