Put in very simple terms:

A no follow link to your site from another site does not help you with search engines/PR.
WDF Reviewed by WDF on . Advice to all Webmasters about links Yesterday I released a WCDDL Module and one of it's features is it checks for a backlink but it also checks the backlink for nofollow. While testing with an old DDL Database almost half the sites (409) with a backlink use the nofollow as nobody ever checks for it. Some people do this for their own benefit but others do it by accident when they install some SEO modules and plugins on their website. A nofollow link to your site isn't much use. You want Google and other search engines to Rating: 5