Keyword tools

Wow! it's more than half a year since I posted something here. I thought I should pen this down and maybe write an ebook out of this.

1. Which keyword search tool to use? Word Tracker, Inventory overture, or Adwords
2. Adwords? Why?
3. Word tracker and inventory overture data are mostly american data. So unless you are targeting at americans, you should be careful when you use word tracker and inventory overture.
4. Google Adword is a good tool you can use to find out about the search results. When you use google adwords, you can find out how many people actually search for a particular word in a particular country. With that information, you can then identify whether it is worth it to write a page for a particular keyword.