We have a new site www.g-lish.org where you can read all articles from This is Ghana in a much more organised fashion. Read Guides for Ghana there.
If you're coming to Ghana, or even if you're already here, you must not miss these two sites:
Lonely Planet and Bradt Guides.
Bradt is Ghana specific as a guide book. Lonely Planet is for all of West Africa. I've used Bradt extensively and while it has its glitches, there is nothing else like it. Those who travel outside of Ghana swear by the LP West Africa guide. Or order the single country guide. If I was only planning to visit Ghana, I'd get LP's Ghana PDF and Bradt's guide book.