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There are many free SEO tools on the Internet, but here’s a list (not listed in any particular order) of the ones I found to be most useful:
P.S. I will be adding more free SEO tools as I discover them. If you’d like to stay updated, please subscribe to our e-Newsletter to the right or our RSS feed.
SEO For Firefox
The SEO For Firefox tool allows webmasters and Internet marketers to easily conduct competitive search engine (Google & Yahoo) research directly in the search results pages to analyze key statistics and data about a particular domain name or keyword. The tool is a Firefox add-on which can be activated or deactivated from within your Firefox browser.