Flight Sim Books for Free

Wow..
This is the site i was looking for.
It is a collection of some more than 20 Books on flight simulation totally FREE for all of us.

http://www.flightsimbooks.com/
Let me find some time and I will read those books and will put my review here.

Here also some gr8 tutorial on Areal aerobatics http://www.fsstation.com/tutorials/aircraft-acrobatics.html
And many other tutorials too