Let me share you some tips which will definitly help you out in getting a good google pagerank...
Pagerank is based on the backlinks your blog have...
To get free 1000s of backlinks for your blog
whenever i post i ping up my blog... at pingomatic.com
do Blog walking
Add a share on facebook link to your blog.
and other helpful posts
How to blog in your own unique style
Ten Tips for writing a blog post