Although my blog this one does not have page rank, but different from my other blog: D
I try to give tips on my practice and for those who want to try to see the article below

1. DoFollow Blogs
Like the blog DoFollow preferred by google. Because the page rank affect google search engine positions.
Lets Check:
- Login to Blogger
- Click Layout
- Click Edit Html
- Check the Expand Widget Templates
_ Then Press search + F (to search for faster)
- Find a word NoFollow
- Replace the word Doffolow
If there is no more words Nofollow means your blog is DoFollow.

2. DoFollow backlinks from High PageRank Blogs
It was also influential in giving homework to your blog.
In essence it is preferred Doffolow blog Google.

Good luck ;)