Free Webmaster Tools for Traffic and Content
 

Duplicate text/content checker: http://www.customsearchresults.com/checker/

Search engine simulator tool: http://www.webmaster-toolkit.com/sea...imulator.shtml

Link popularity checker: http://www.webmaster-toolkit.com/lin...-checker.shtml

Class C IP redundancy checker: http://www.webmaster-toolkit.com/class-c-checker.shtml

Search Engine Saturation Checker: http://www.searchbliss.com/seo-tools/saturation.asp

Keyword page placement verification tool: http://www.searchbliss.com/seo-tools/verify.asp

Alexa Ranking checker: http://www.searchbliss.com/alexa-rank-tool.htm

Batch Pagerank checker: http://www.pagerank.net/pagerank-checker/

Thanks for the useful links :thumbsup