Hello there, and welcome to KHInsider!
I'm from the Newb Adoption Agency, so I'm here to help you out. Is there anything specific you'd like to know? Don't be afraid to ask, that's why I'm here.
In the meantime though, here are a few links you should check out, they should fill you in a bit. The FAQ is here (click), read through it just to make sure you're aware of the rules and all. This one (click) is more of a list of suggestions for fitting in and being respected and all, definitely read through it.
Other than that, have fun!