Some older but still very good guides for the PS2 can be found here.

http://turdinc.kicks-ass.net/Msntv/ps2/ps2.html

Guides such as...

<li>Copy games to your ps2 hard drive or any hard drive.
Using the Free Loader hack! Original ps2 only. 

<li>Booting up your backups with the no solder mod.

<li>Burning Tutorials, and more.