What is the best book or best web-site to get better at trading options?

Black-Scholes and Beyond: Option Pricing Models by Neil A. Chriss and Ira Kawaller

Option Pricing: Black-Scholes Made Easy by Jerry Marlow

Stocks Bonds Options Futures by Stuart R. Veale

Stock Options for Dummies by Alan R. Simon

Options for the Stock Investor by James B. Bittman

Getting Started in Options by Michael C. Thomsett

The Guru of options is McMillan. Read everything you can get your hands on by him, and you will be ahead of the game. You need a lot of help.

Profit With Options
McMillan, Lawrence G.
This is his first book, but his second one is even better and more advanced. It is the one he uses and prefers, and is called:
McMillan on Options

Also
Profit in the Futures Markets!
Bernstein, Jake
"Insights and strategies for futures and futures options trading." One of his earlier books. Straight shootin' book, by a real trader, and good psychologist.

perhaps you can try forex. which is also excellent way for you to invest.

The FOREX or Foreign Exchange market is the largest financial market in the world, with an volume of more than $1.5 trillion daily, dealing in currencies. Unlike other financial markets, the Forex market has no physical location, no central exchange. It operates through an electronic network of banks, corporations and individuals trading one currency for another.

try forex from here:

Good Luck && Wish you make a fortune!