Seo tools
check your keywords ranking in google,yahoo.
http://www.seoserp.com/web_tools/yahoo_top_1000_serps_checker.asp
check your keyword ranking in yahoo (1000_serps_checker)
http://www.trafficzap.com/keydensity.php
check your keywords density
http://www.seoserp.com/google_page_rank/1000_serp.asp
check your keywords ranking in google (1000 ones)
http://websitegrader.com/#ReportTop
check your website seo grader
https://adwords.google.com/select/KeywordToolExternal
keyword select tool
backlinks checker
http://www.webconfs.com/search-engine-spider-simulator.php
search engine spider simulator
