Increasing Page Rank – Join Forums

We all know that Page Rank is gold.  The higher the page rank, the more gold you have!  Since this is a new blog, I am looking into ways of increasing its page rank.   One suggestion – join forums.  Join multiple forums that are related to your blog.  Make sure that you create a signature line in your profile so that every time you leave a comment, your name AND website URL appear.  You are now receiving links back to your blog and advertising your blog at the same time accomplishing two things at once.