For the webmasters out there:
I have created a short “cheat sheet” page of SEOtools and tutorials that you may find useful. If you are looking for basic advise on how to make your website more search engine friendly or need to do a complex linking analysis of your site, it is all right here in one place.
Online SEO Tools (sorry this link is gone now. Things have changed since 2006 after all!)
Hope you find it useful.