Memberships are no longer available, but a compendium of all work done by the group is:

HIWG CD #1 and #2
Contain about 380 megabytes of material generated by Traveller fans.
A partial/old list can be found at Bryan's Web Site under References.
The cost is $20 each, including S&H.

Send to:
Bryan Borich
3890 50th street
San Diego, CA 92105-3005