Blog Page Rank can be increased by posting relevant and original content on your blog on a regular. Don't spam your blog homepage with lots of advertisement selling. Also try out some link building from relevant sources such as guest posting, article submissions and blog commenting. These all will contribute your blog for a better page rank.
It is really great to know that you are looking for some solution to enhance your blog PR. Boosting your page rank is not something that you can make it overnight. It will take time. In the meantime, you need to be master with 5 more things to enhance your website.
1. Write original content and it would be unique.
2. Always think about the quality of your post and not the quantity.
3. Get Incoming Links from some great quality web sites.
4. Google algorithm care about quality links and not quantity.
5. Try to post you link page in â€œone way postingâ€ rather than â€œreciprocalâ€.