For many of you keyword research veterans, this may be nothing new. And if you’ve signed up to get the free gifts, you also have my free Lucrative keyword research Guide. However, I find this to be the best mini-guide to Keyword Research that I’ve seen in a while. It covers quite a few things that even experts forget.
Here’s a quote from Gobala Krishnan’s article Keyword Research 101 : Fundamental Keyword Strategy that talks about the limits of keyword research:
There are some severe limitations to keyword research. The main one is that it tells you what the user typed into the search engine, not what the user is really looking for or the state of mind the user is in.For example, the user typed in “cheap gibson electric guitar†into the search engine and found your site. But, what is the user thinking when he is reading you page? Is he:
* Looking to buy a product – if yes, then your site should be primarily monetized by affiliate programs that pay you per sale. You can find a lot of physical products and digital products that you can sell from your website just by typing in “your keyword affiliate program†in search engines
* Looking for more information – if yes, then your site should be monetized by an advertising program like Google Adsense or Chitika, since the user is more likely to click away for more information rather than buy something
* Looking for bargains – if yes, your site should be monetized by Ebay or Auction Ads, which is based on Ebay but works like Adsense
* Looking for freebies – if yes, your site should be monetized with CPA (Cost Per Action) programs that you can find on networks like www.shareasale.com or www.linkshare.com
). This will determine what keywords your site is currently optimized for. 
