These are places that have info on how to play and get better at the game of TW
TW Beginners Guide This is an excellent place to go for the basic and more advanced info on how to get in and get started
Slice's War Manual This is what i first used to learn how to get better. A little out of date, but still worth the reading.
TW Bible I found this while searching for an updated version of Slice. It's VERY out of date, but it is short reading and gives a good start.