I really liked this, because it says what its all about for him nowadays:
"I have set aside the idea of being called a Venture Capitalist, because I am not in the financial business. I am in the Venture Assistant business. My goal is to be the best assistant there is for anybody trying to build a large technology oriented company."
The above quote is from the left side of this page on his web site.
A video of him talking about ethanol as biofuel.
His current venture firm.
Some more links about him:
Wikipedia entry about Vinod Khosla.
Catching Up with Vinod Khosla