The "top titles" display option in Competition Strategy Studio will list all the top ranked web page titles for the selected keyword.
These titles are a rich source of..
Look through the web page titles of your top competition. The titles are listed along with their strengths (The strength is based on the ranking in top three search engines).
Can you create a better title? Use the ideas from the different headline types for creating good headlines while keeping an eye on the existing titles. Make sure that your title is unique and better.
Looking through these titles will also give you more ideas about keyword phrases and also ideas about topics you may want to discuss in the future.