The Registry currently lists 132 "live" Eprint Archives and 15 "dead" ones
(bad links). He also has charts plotting Eprint Archive growth, both in number of
archives and in number of papers in the archives.
http://archives.eprints.org/eprints.php?action=analysis
The Registry also makes it possible for you to add any Eprint Archive you know of
that is not yet in the Registry. Please do add any Eprint Archive you know of!
http://archives.eprints.org/eprints.php?action=add
Please feel free to re-post this on any pertinent lists.