I was checking out www.keywordcompetitor.com and they claim they can tell you what keywords your competitors are using in their PPC campaigns and organic listings. They can also monitor every move your PPC competitor makes.
How can they get this information? Say I have an AdWords ad running. I assume only Google knows what keywords I am targetting.
It seems if I want to get this information about the competition, I would have a list of thousands of related keywords and do a Google search for each word and see if their ads come up? A primitive brute force method. Actually first I also have to find out who my competitors are.