Strategy Central
Mastering the game can be quite a task, and doing it without a good strategy could be close to impossible. From here you can read about strategies that other people are using and they might help you a lot in the game. The forum also offers a Strategy Central.
Campaign Strategies
Building up effectively
By Litude
Multiplayer Strategies
Basic Multiplayer Strategy
By Litude
General Tips & Tricks
Some good to know tips!
By Litude
New to TPR? Some tips...
By Litude
Hints
By Krom