Free Webmaster Tools

[Hopio]

Keyword Analysis Tool
Compare Search Engine Results - Google, Yahoo and MSN
Link Popularity Checker
Backlinks PageRank Check Tool
Google Position Checker
Google PageRank Tool
Yahoo Page Position Checker
Web Page Link Checker
Ip Address Location Tool
Domain Name Location Tool
Website Rank Checker
Advanced Meta Tags Generator
Meta Tags Extractor
Website Speed Test Tool
Server Header Checker
DNS Qwuery

and more...

Free Webmaster Tools (http://tools.webmastersworld.org)

[megri]

You can Find more here
http://www.seowebdirectory.com/SEO_Tools/
http://www.webmasterdirectory.biz/11-webmaster.html
http://www.hellowebmaster.com/webmaster_directory/Webmaster_Tools/