Discovered Pages
[Discover] Google Webmaster 404 Tool http://www.mattcutts.com/blog/free-direct-text-links/
(google muledesignblog webdesign webdev) 
[Discover] Matt Cutts: Gadgets, Google, and SEO " Google/SEO http://www.mattcutts.com/blog/type/googleseo/ (google seo reference blogs)
[Discover] SEO advice: url canonicalization http://www.mattcutts.com/blog/seo-advice-url-canonicalization/ (seo google search http)