Check out these Superman Usenet newsgroups (depending on your web browser and Internet Service Provider):
rec.arts.comics.dc.universe and alt.comics.superman for talking about Superman comics.
alt.tv.lois-n-clark and rec.arts.comics.other-media for talking about television's Lois & Clark: The New Adventures of Superman.
rec.arts.animation and rec.arts.comics.other-media for talking about the new and old Superman animated series.
rec.toys.action-figures and rec.toys.misc for talking about collecting action figures.
For other comics newsgroups check the links the general comics information section of the Superman Homepage.
DISCLAIMER: SUPERMAN and all related elements are the property of DC Comics. TM& © 1996