Recently switched to Ubuntu Linux 9.04 Ultimate Edition 2.2 from Windows XP. Installed, Set to Dual Boot, but I use Linux 99% of the time now. I am almost ready to get rid of my security blanket :P . Downloaded and installed several programs, and got five PC's total running Linux, three on Ubuntu, two on Puppy/DSL, all just for kicks.
My question is, where to go next. Are there any distro's I should install just to see how different? Any suggested reading, be it books, magazines, or online links? I think I am interested in seeing what's under the hood of Linux, I just don't know where to go. I need basic how to shell type books or info.
I have no programming experience, but I would like to be pointed in the right direction. I am open to any suggestions. This is all just a hobby for me, but I am very interested in any help you can give.