Though I don't have direct experience in this, I have known others who have done this. Their results were that their websites benefited in increase traffic and SEO. I dont know about the PageRank. I would predict it will due to LinkedIn's high PageRank.
InsightsDigital 57 Posting Virtuoso
InsightsDigital 57 Posting Virtuoso
InsightsDigital 57 Posting Virtuoso