To increase traffic:-
-Directory Submission
-Social Bookmarking
-Article and Press Release Submission
-Blog commenting
-Social networking promotion.
-Add good and proper content to website
-Post backlinks to good blogs.
These are free ways to get Traffic and visitors for your site and increasing the page rank..but this will generate small amount of traffic...You need to implement the paid SEO tool to get more visitors and rank in search engines...You can get the Traffic Blazer or Search engine visibility service at here
Tucktail.com it helps to get more Traffic.So the Page rank will increase for your website or Blog....