Does the Wordpress incoming links square on the dashboard of wp admin show nofollow links to your posts?
This is what they do in the incoming links block: They display search results from blogsearch.google.com. The search URL is (this is from wordpress source code): http://blogsearch.google.com/blogsearch?hl=en&scoring=d&partner=wordpress&q=link:http://myblogdomain.com/ (change myblogdomain.com to you blog's domain name) So I guess, nofollow links are not taken into account.