BSD Basics For The Newbie
qbasicprogrammer writes: "FreeBSD Basics on The O'Reilly Network covers some of the more useful FreeBSD commands that make computer life easier, including commands for things like scrolling through virtual terminals and checking date, time, and current working directory. Good read for the BSD neophyte."
Try this I and several other people I know use it on a regular basis.
Cypherpunks: Civil Liberty Through Complex Mathematics. Those who live by the sword die by the arrow.