To join the SKEPTIX list (the best paranormal, ufology, and  
cryptozoology discussion mailing list around), those interested should go to
http://mailman.efn.org/cgi-bin/listinfo/skeptix

p.s. If you wish to take a look at the list before joining, check out
the newsgroup bit.listserv.skeptic
 
p.p.s. If your newsreader isn't getting the newsgroup mentioned above, 
you're getting screwed! :-)