Unbalanced Binary Tree

Hi guys,
I am currently studying on binary trees and will appreciate if anyone could help by pointing me to any resources or even give me an ideas on concepts and codings.

Thanks alot.

http://epaperpress.com/sortsearch/index.html
http://www.cs.usask.ca/research/rese...tree/2-1.shtml
http://www.contrib.andrew.cmu.edu/~m...owto/x198.html