How about instead of linking him to random websites, just simply telling him what rooting is?
Rooting on Android is different from a jailbreak on iOS. Rooting is like the "Run as Administrator" command on Windows, it allows you to do certain processes that are otherwise not possible. A non-rooted Android device can be viewed as a standard user with certain administrator privileges, whereas a rooted device is like the administrator account. The process of rooting is different for every Android device, so you'll have to search up the specific process for your Optimus S.
After rooting, you can do a variety of different things, but the list is unlike the jailbreak for iOS (as the latter is a lot more limiting when not jailbroken). You gain access to modifying certain aspects of the Android OS, such as advanced themes, or installing a custom-made ROM to replace an old one. You also get an array of exclusive applications such as AdFree (an AdBlock for Android), and Titanium Backup (very helpful tool for backing up all your apps and data).
Here's a page about rooting the Optimus S that may or may not help you:
http://androidforums.com/optimus-s-all-thi...ck-methods.html
