UNIX Help for Users - Extensive and well organized tutorial on using Unix and Unix-like operating systems. - http://www.javacommerce.com/displaypage.jsp?name=index.sql&id=18234
BigNoseBird Unix Primer - A Unix primer designed for Windows users. - http://bignosebird.com/unix.shtml
Unix Tutorial for Beginners - New users tutorial, with information on installing and compiling software packages. - http://www.ee.surrey.ac.uk/Teaching/Unix/
UNIX help for users - Unix help desk and online reference from the Mississippi Center for Supercomputing Research. - http://www.mcsr.olemiss.edu/unixhelp/
UNIX Guide - A table of common UNIX commands and tasks. Extensive links and Unix related news. - http://www.unixguide.net