Mr. Carl Sandin
 

I would like to know where i can go to get some good references notes to review for my linux classes

Google

Here are three good ones.

http://linux.about.com/. It's oriented to Ubuntu, but it's full of good info for new and intermediate users. Since it's a website, there are lots of pictures and stuff like that there.

http://tille.garrels.be/training/tldp/. Machtelt Garrels Intro to Linux. Excellent.

http://www.slackbook.org/. Slackware oriented, but excellent on the basics, such as file structure, permissions, and the like.

There is a wealth of information at The Linux Documentation Project.

Depends on the class content; try http://rute.2038bug.com/index.html.gz and www.linuxtopia.org