Overwhelmed, confused...just me?

So I'm somewhat new to the whole blogging thing.  There are several that I came across a few months ago that I really admire.  But as I'm getting more and more into writing my own blogs, searching other blogs and blog hopping, I've come across ones that are review and giveaway sites. 

I certainly understand the concept behind all of them, I just don't know HOW you do them.  And then there are ads and sponsors and....I don't know all what.  I've placed a few ads from Revenue Curve but who knows if that will generate anything.  I'd LOVE to make money from blogging but I don't think I will ever build a nest egg from it.  It's a nice thought though.  Trying to research it just makes me even more confused.  Anyone with me on all of this?  Anyone have any ideas/advice on how to wade thorough it or where to start?  Like I need to add one more thing to my to do list, right? :)