Help With Adv render

Hey guys,
I am trying to learn how to render in Blender. I know the basics and understand how to render. But i wanted to know if someone or anyone could give me some websites to learn how to do advanced rendering. Like GI and etc. How to make some look real in other words. I am using 1.49 and i cant use rafiray but i have dipped into Lux Render a bit but would much rather use the internal render.