Links to Aerodynamics pages

[Razor]

I am looking for any useful links to aerodynamics sites, particularly multi engine forces and performance. I'm doing my CASA multi engine training approval in a few weeks and I am looking for any different ways of presenting the info.
Anyone know of any?
Thanks in advance

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Never fly in anything that has the wings travelling faster the fuselage. Like a helicopter.

[Checkboard]

Have a look at:

http://www.best.com/~williams/avform.html

which is a page where a guy has transposed a lot of aviation formulae (although mainly concerning spherical trig) into computer speak for programming calculators/computers.