It is a replacement for the reading group that Fred Moulton used to run (here are the books which that group discussed).
Here is a list of the books we have discussed.
Here is a list of the books we plan to discuss.
ERG tentatively stands for Extropian Reading Group, although I don't want to attach too much weight to that.
ERG meetings typically have 6 to 8 people attending, which I think is about the right size. There are 17 people on the mailing list as of November 2000. We have been somewhat selective about allowing new people to get added to the list, usually requiring that the new person be recommended by an active member.