Google Dance工具
http://www.seonet.net/seo-tools/google-dance-checker.htm

查看你网站在google上的排名
http://www.cleverstat.com/google-monitor.htm

含蜘蛛模似器等
http://www.seotoolkit.co.uk

GOOGLE 排名监测工具下载
http://www.cleverstat.com/google-monitor.htm

查询关键字使用频率工具
http://inventory.overture.com/d/searchinventory/suggestion

蜘蛛模似器
http://www.webconfs.com/search-engine-spider-simulator.php

关键词密度检查
http://www.seotoolkit.co.uk/keyword_density_analyser.asp

链接流行度 Link Popularity Checker
http://www.seotoolkit.co.uk/link_popularity_checker.asp

PR值查询工具
http://www.webrankinfo.com/english/tools/pagerank.php