It struck me that solving puzzles like these are the perfect domain of "Mind Mapping" software. I've had good results with XMind before (see: http://www.xmind.net/ ), which is free for the downloading on multiple platforms.
So, I've created a mind map document that includes all of the facts from the actual episodes (up through Episode 3, at least), as well as things I was able to figure out for myself and what some of the other websites had found (with links to the sites I used in the mind map).
*** CAUTION: Mind Map contains many spoilers ***
The good thing about the mind map is that it will not show up on google, for those trying to solve the puzzle without help. You can either download the mind map and use it for yourself, or view it online at:
If you find errors, omissions, screwups or other things you would like to see corrected, please email me at realrob -at sign- hafernik.com
Have fun, everyone,