Spyfu

Here's another useful competitive web analytics tool.

You may be curious about web advertising and what it could do for you. You may be even more curious about how online advertising is working for your competitors. How much are they spending? What kind of results are they getting? Well, there is a site that can answer these questions: www.spyfu.com

Type in any url to find out what they spend on key-word advertising. I typed in spyfu.com to see what they were doing themselves and here is what I got:

You can see what their daily budget is, how may clicks they get as a result and what this clicks are costing them.

Another interesting feature is that you can see what the search terms are that they are paying for. What their most successful AdWords are:

Try it out on your competitors. Try it out on your own company and let us know - is it accurate?