Normally a blog does not achieve a page rank until after 6 months have passed. This is referred to as being in Google's sandbox and during this timeframe you have an opportunity to build search engine trust. Why is that necessary because the majority of all blog created everyday are created by spammers and sploggers. Also note that there are so many people playing SEO game the search engines that Google has been downplaying the value of page ranking since 2009.
There are hundreds factors that go into determining page ranking. Last year Google made over 900 algorithm changes, only 500 of which most of us are aware of These are some of the positive factors that Google’s algorithm takes into consideration:
1. Keyword Use In Title Tag
2. Global Link Popularity Of The Site
3. Anchor Text Of Incoming Links
4. Link Popularity Within The Site
5. Age Of The Site
These are the negative factors that Google’s algorithm takes into consideration:
1. Server Is Often Inaccessible To Googlebot
2. Content Which Is Very Similar Or Duplicate to Existing Content On The Web
3. External Links To Low Quality Sites and Unrelated Sites
Make it part of your blog strategy to focus your attention on the following:
writing high quality unique content and publishing frequently;
creating clean code in your posts http://en.support.wordpress.com/visual-editor/#pasting-text and ensuring your site validates;
using keywords and tagging properly so the content can be found and indexed;
optimizing your images;
linking to exceptional content on authoritative sites with respectable Page Rank;
being careful not to link too link to frequently to sites with lower Page Rank and not creating a mile long blogroll of links to sites that are unranked and/or unrelated.
The bottom line is that if you are publishing original high quality content frequently and you are backlinking to other original high quality content in your posts then I recommend not getting fixated on Page Rank.
IMO from a beginner's POV the value of becoming familiar with the factors that Google and Bing do provide in articles and tutorials is learning what not to do. The best place to discover what they are is at Google webmaster tools help and http://www.google.com/support/webmasters/?hl=en at Bing Webmaster tools http://www.bing.com/toolbox/webmaster/