I am attending the Blog Tour USA stop in Denver with some well known, respected bloggers, and they have asked us what we want to learn in our educational session.

Help me out here everyone...I have a list of things I would like to know, but I am sure there are lots of things that I don't even know that I need to know! At the risk of sounding really stupid, here are a few at the top of my list.
Trackbacks. I know it is a link from one blog to another, but how do I do it? Do I click on the trackback link for the blog I am posting on or one that I am quoting from? I think it is the latter, but I have no clue how they work! Do I copy and paste it or is it automatic?
Friends in Facebook and Linkedin. Social bookmarking is what I am told I need to do. What good does it do me to have friends and why should I care?
RSS feeds. I use Google reader for my feeds, and to add a blog feed, I go to Google reader and type in the URL of the blog. What happens if I click on the RSS feed logo on the blog I want to subscribe to? Does it come into Google reader, my email or somewhere else?
How do I know who or how many are subscribed to my blog?(not AR, but my other blog) I have heard that feedburner will tell you, but what do I have to do to get it to do that?
What happens if I click on all the little logos at the bottom of the blog posts? What does it mean to "Digg" someone? I know it is a way of saying that you like that post, but again, why should I care?
Technorati has "authority ratings" for blogs and mine is up to a 9 (from a big 0 not long ago) but what is good and what is not? How do they determine the ranking? And why should I care? 
Sometimes I feel like I am taking a trigonometry class but I haven't had algebra yet. It seems like I know the basic arithmetic, and I am gradually figuring out the newer terms, but I missed out on the important knowledge in the middle that would make the things I am learning now more understandable.
I felt this way when I switched schools and the school I came from had not yet taught us the metric system. The new one I went to had already learned it and assumed I knew it. Metric measurements are a failing of mine still.
What other questions should I be asking? What would you like to know?
Joanne, It is mind-bloggling to say the very least.