I've been playing a lot of X3: Reunion lately. A fantastic game, but one that gets confusing very quickly.
To help alleviate this, I've made a program that works from within a web browser and parses all the important game data files for you. The upshot of all this is that you can search the game for space station locations and the availability of different tradegoods, and the program will spit out a map showing you where to go for them.
The place for all this, and more, is here.