What? GentooLinux? What's that, you ask? Well, first, if you don't know what Linux is, let [Google] tell you all about it. GentooLinux is a Linux distro in which all packages are (typically) compiled from source. It uses a system called portage to calculate dependencies and download and compile everything needed. This has a number of advantages, the biggest of which are:
* Speed. Everything is optimised for your box, and is uber-fast.
* Convenience. Just emerge package-name, wait a little while and there it is. No searching for dependencies.
Gentoo is also very up-to-date. You can be guaranteed that only a little while after a new version of whiz-bang-thingamajjig is released, a simple emerge sync followed by an emerge whiz-bang-thingamajjig will have you up and running. And Portage is actually exceptionally good about not breaking things. I've been running the same install (on this machine!) for over three years now, and it's just fine. My machine is very up to date, and I don't really think I'll ever need to re-install, except for some kind of catastrophic disk failure or something.
And indeed, time has gone on:
* Here you can see some GentooTips, that may or may not help you.
* Some more general UnixTips. Some of these are pretty cool.