[rhizome]

I prefer "man hier" at the command line. Much more succinct than either of those:

e.g. http://linux.die.net/man/7/hier

[SkyMarshal]

Agreed, and man hier is always there if you forget something, don't have to go track it down on the web.

However, I found these useful too when I was learning it. Sometimes it just helps to read different explanations of the same thing till it sticks:

http://linuxcommand.org/lts0040.php

http://rute.2038bug.com/node20.html.gz

[frou_dh]

Cool! "TIL", as they say on reddit.

[tav]

For non-redditers, TIL stands for "Today I Learned".

http://www.reddit.com/r/todayilearned/