I'm excited to share this series with you, called "101 Blogging Tips". In the series there will be 101 blogging tips that you can begin applying to your blog today! Don't wait, get started now!
Tip #74: Keyword Optimization - Keyword Spy Tool
By now you should be using the FREE Google AdWord Keyword Tool. It is really a great tool to add to your blogging SEO strategies and in developing keywords to work into your next post.
I recently came across this other tool called Keyword Spy and it's a keword "research" and "tracking" tool, but it is NOT free and starts at $89.95. They do have a Free Trial and a Demo to watch on their home page: http://www.keywordspy.com/.
Here are a list of features (snapshots from their site). Happy blogging!