to bring visitors you need to go up in searches for keyword and u cant get pr quickly it will take some time
Don't concentrate on PR and keep on building backlinks. Coming on top search terms is more important. This resource might be of some help to you: http://www.toprankblog.com/2006/06/25-tips-for-marketing-your-blog/
go to my home page or pm me. I have a blog with all the information you'll need for blog/website marketing. Everything from attracting traffic to earning from your blog hope this helps....
http://tipsforasuccessfulblog.blogspot.com/ It's the best place with loads of information on how to market your blog to getting noticed aand loads of unique visitors. I used evry trick with no success until I went to this site and things have gone great ever since. hope this helps
Blog marketing I guess finding the niche that is related to your blog and do make some comments on it. You could also ask link exchange with them though it should not be abuse. Any kind of backlinks that is related to your site will increase your rankings, traffic and in the end page rank.