摘要：In this article, we focus on the correct way of finding out the keywords for which you should optimize your site for the search engines. This article will give you the formula for the Keyword Effectiveness Index (KEI) - a mathematical formula which I have developed to help you determine which keywords you should be optimizing your site for.
Step 1: Open your text editor or word processor and write down all the words and phrases that you might have searched for if you were looking for a compan （全文共9059字）——点击
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