Class update

So I am kind of getting confused while reading Snow Crash. I do not really understand the whole virtual reality concept, and it is hard trying to figure it out. I am not used to reading books on technolodgy. I understand that people make avatar's that represent themselves and communicate with others through the virtual reality. That part of the book does not confuse me but when it comes to the library and hypercards, I get completely lost. What are hypercards? What is the library? The basic concepts of this book I am fine with but when it goes into depth about hypercards and snow crash, I have no clue what's going on. Other than reading Snow Crash everything else in the class is fine. I am scared about making the next podcast because I am not sure how I did on the first one, therefore I don't know what I need to improve and work on. I like doing the podcast with a partner because it makes me more comfortable. It is just like having a conversation rather than having it be a project you do by yourself. If we are not doing the podcast on Snow Crash what are we suppose to talk about? Overall the class is going well I am just trying hard to completely understand the book.