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Anyway - if anyone else has some killer questions please send them along.
Make sure you have some current Google rankings in front of you so that you can make sure that they don't know what they are on about.
Open the Overture suggestion tool so that when they quote search numbers you know where they will get them from.
Their web site claims 'top results on Google' and gives a handful of keyword examples.
Of course, when you click thru you find the examples to be from 'google.there,' google.somewhereelse' and 'google.overthere,' markets in which the client is not at all interested.
Asking for a detailed walk through of their 'portfolio' might be interesting.