Hey there,
Project Aon
I used to love these books so I was stoked when I found them online. This is entirely legal and approved by Jon Denver.
There is also a fantastic program in development called Seventh Sense which is on this site also. It only has books 1-3 at the moment but is being worked on still. It keeps track of everything automatically so you can't cheat even if you wanted to :p
If you are into this style of book and remember The Kai Lords then I stringly recommend having a look at this site and Seventh Sense.
Karl