Here are two series of articles I can suggest. I wrote them, so naturally they are brilliant!

Beginners Bootcamp - For any kind of plane

First Lift - For new sailplane pilots.

You will find them listed here:
[link=http://www.rcezine.com/cms/bio.php?authorid=8]New Glider Guiders click here :-)[/link]

I suggest you start at the bottom of the list and work/read your way up. Let me know if you find anything useful.