Thanks for the votes of confidence! I'm just really glad people are finding it useful. I've been a bit of a leech on this site for years. It feels good to give back a bit. The subject area isn't terribly hard to understand - with the exception perhaps of some of the engineering issues - but the info isn't all in one place and that made doing research pretty cumbersome. With the right foundation, I think many people can do this.
Plus, it really is a lot of fun!