I'm having trouble getting started with Rift. Played EQ and WoW for years, so basic concepts are fine. But I'm having difficulty figuring out some thing and I can't seem to find answers. All searches for guides are either blank, gold sellers, or useless (One guide basically said to level you can quest, grind, instance, or do rifts. That's all it contained, not very helpful). Wiki entries are mostly empty. So if anyone can point me to some decent resources or answer some basic stuff, I'd appreciate it. I didn't beta or follow the game until a few days after launch I bought it, I'm currently testing different classes and getting a feel for the trees and such, haven't levelled past 8 ( just so you know where I'm coming from). Here's a couple of things that I'm just not getting, help with these and anything else I might miss is appreciated (I've read the official forum "guides" and those here and am coming up empty, everyone seems to consider this common knowledge I guess).
1. How do you 'do' an invasion/rift. I know I can join the public group but that's about it. I saw messages saying 'close such-and-such' rift and 'bring shadestones to spomeplace'. How do you close rifts, and how do you get the shadestones? Any other help in understanding what I'm supposed to do instead of running around aimlessly killing stuff would be great.
2. I found an artifact. It's asking me what collection or something that I want to put it in. Thing is, I don't know what an artifact is for, what the choices are, etc.