Seo Tools
Zoekmachine Rank Checken: http://tools.seobook.com/firefox/rank-checker/
Pagerank checken: http://www.prchecker.info/check_page_rank.php
PRprawler: http://download.cnet.com/PR-Prowler/3000-2251_4-10418255.html
All in one Seo pack: http://wordpress.org/extend/plugins/all-in-one-seo-pack/