Hi Domenico (and Dave W8AAS)!
The AMSAT-BB archive is here:
AMSAT is now archiving AMSAT-BB messages in two places. Domenico's link above has all the messages going back to 1998. When the mailing list software changed in 2006, a new archive started at:
http://amsat.org/pipermail/amsat-bb/
The "pipermail" archive only goes back to August 2006, but it has the advantage of separating messages by month in 2009. Domenico's link puts all 2009 AMSAT-BB posts into a single link, not accessible on a month-by-month basis unlike the posts from earlier years.
Regardless of where the posts are located, AMSAT-BB posts are easily found when searching in Google. You can put in your search criteria and also include "amsat-bb" as a way to narrow your search to AMSAT-BB posts.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/