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Yes Wisam, I would expand that list of specific keywords. Do you monitor your on-site search? Do you look at your keywords in Adwords (if you are doing PPC) for the keywords that actually trigger your ads (versus terms that you are bidding on)? Both of those places are great places to get ideas for keywords permutations you may haven't yet considered. In addition to the larger e-commerce site that I do in-house SEO I also do SEO for a very tight niche site. It is a product line with which I am extremely familiar. For that site alone Itrack about 250 keywords in SEOMoz...so by all means, yes, expand your targeted keyword list and track them all. I can guarantee you'll find some gems that you've probably never considered. Also, here's another way to find "high opportunity" keywords. Use Avinash Kaushik's custom reports for tracking keywords based on length of keywords string. You can find more about that here http://www.kaushik.net/avinash/best-downloadable-custom-web-analytics-reports/ Pay attention especially to the performance of long tail versus short tail keywords. Here's a link to a blog post that will, I hope, not only blow your mind, but change your life! Okay a little extreme I know, but my God Avinash Kaushik isuch a freaking genius! http://www.kaushik.net/avinash/advanced-analytics-visitor-segments-engagement-social-media-search-long-tail/