Hi, I have some SEO tools that maybe helpful to you all. http://www.seochat.com/seo-tools/keyword-density/ (not an affiliate link) http://tools.seobook.com/general/keyword-density/ (not an affiliate link) If you have use any other tools then please tell me. Thanks
both tools are good and useful.. for keywords research you can use... word tracker, google adwords, or keyword digger..all are nice tools.