I am looking for a tool that can find me an accurate number of PPC advertisers for a specific keyword. For example, I put a keyword in the Google Ad Planner and it comes back as HIGH ad competition but when I put the keyword in google itself with and without quotes, I do not see any companies running ads. Also, I make sure I log out so I don't get results that would be catered to me.
I haven't used keyword tools in a while, but I remember SPYFU being a popular option for this. Any other options that are free or a bit cheaper then Spyfu that does a similar job?