I was unable to connect to that site, but check this one out:
http://unix.about.com
It's a little hard to navigate; check the left hand column.
History, tricks, tips, etc...
A good website, even if not layed out very well.
[Note: It's been a long time since I've been there, and in reviewing this, I noticed that there are lots of ads, and multiple pop-unders for each page visited... Yuck!]