We recommend two articles to help you:
Overview of the Tool
Jump to our SEO Keywords article on the SpyFu blog to read the best ways to use this tool when you are researching your own keywords vs when you are researching your competitors' keywords.
There, we cover an overview of the SEO Keywords tool so you can learn how to get more out of its features.
We will walk you through how to take action on your keywords and on your competitor's keywords. There are different cases for all of these keyword segments:
Most Valuable Keywords
Newly Ranked Keywords
Keyword Rank Gains
Keyword Rank Losses
Keyword Click Gains
Keyword Click Losses
Keywords that Just Made the First Page
Keywords that Just Fell Off the First Page
Click through to read: An SEO Keyword Tool with Clear Direction on the SpyFu blog.
We also review ways to use the "Compare to Your Site's Ranks" feature on SEO Keywords to help you prioritize your next content updates in this tutorial.