If you look at the right side of the blog here and scroll down a bit, you'll see a new list of links labelled "The Shoulders of Giants - Wisdom from the Masters." The links here will take you to several message board Q&A's where you can read what folks like Gygax, Arneson, and Bledsaw had to say about the origins of the hobby, like this one.
You could literally spend days going through these, and there's lots of cool stuff to be found and discussed within these postings. I think these are an important historical resource for our hobby, and hope some day to see someone archive and collate all these for posterity!
If you know of a good, extensive Q&A or history thread I've missed and would like to see listed here, please let me know.