I'm looking for a really fantastic researcher, to help me understand a lot more about Adwords. What I'm seeking, in particular, is research on rates (fees) for CPM, CPC etc. I really want to learn about the different costs scales for keywords (from the cheapest, to the most expensive), and the effectiveness of each - that is, the cheaper keywords (I assume) do not produce many clicks, very often, as the keyword is 'saturated'. So I want to have some research on the business-side of Adwords, and what level of investment (in both terms of money, and time/effort) the system requires of a User. I don't need any information about its history, or current stature in the market, just the numbers that have an impact on using it, as a webmaster :) Thank you
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