SEOguru.nl (Dutch) has an article in which Matt Cutts (Google spokesman) stated that you can't use nofollow for pagerank sculpting anymore.

The Dutch website http://www.seohandleiding.nl/google-strooit-met-kruimels.html has an article on the introduction of Google breadcrumbs.

I have a habit to analyse each website a visit. Especially since I have installed the SeoQuake toolbar (Firefox Plugin). The toolbar has a lot of usefull information that's updates each time you visit a page.