Help with elm and rn (new unix user)

[Steve Huff, University of Kansas, Lawrence]

I'm a Unix beginner, and am just starting to work with elm and rn.
Could somebody suggest a reference guide for these and other popular
unix commands?  The man command just isn't cutting it for me.
If the docs are online, please point me in the right direction.

Thanks.  E-mail is certainly appreciated.

Steve
-----
HUFF at kuhub.cc.ukans.edu   <-- if invalid then --> bmskc!genco.bungi.com!shuff
Steve Huff, student, University of Kansas     "Still love that KU basketball!"
Programmer / Analyst, Hill's Pet Products, Topeka, Kansas