rute users covers servers and services from the basics.
The definitive linux server is LAMP.
So, in addition to rute, you should get the documentation for Apache, MySQL and PHP. A
Perl cookbook is a good idea also.
Then you want a
tutorial. But most of all, you want hands on experience.
Overview type stuff is:
http://tldp.org/LDP/sag/
http://tldp.org/LDP/lame/LAME/linux-admin-made-easy/
I've just given you enough info for a university paper. Have fun.