there are a few sites that give you the basics (what a maneuver should look like), but about the best instruction is to pick maneuvers one at a time and just practice.

I am just learning, but I wanted to learn to hover, so I went on the simulator for a few hours and then practiced while burning fuel in my Funtana 40. after a bit it just comes... (well it cost a few planes) Next was harrier... same thing.. practice on AFP for a bit then burn some fuel... and it comes (after another couple planes..)

there are a lot of cool vids that i watch to get ideas of how things should look (no-one around me flys 3d) check out www.3dbatix.com for some...i have been searching for others but i cant remember where i found them.

I know this isnt exactly what you are looking for... ie instructional sites.. but just the way I am learning..

Gerald