I have a wordpress blog and a www-website on the same domain for about one year. Together it is about 170 pages. The page rank is still 0. I understand that page rank 0 is a penalty for duplicate content. The pages are indexed in google but still no page rank.

In google webmaster tools there is no indication for any problem. I asked for reconsideration of both blog and website a month ago. Google accepted the reconsideration but it did not change anything.

Other pages of similar size and similar audience earn PR 4-6. Is there something I can do in order to get a fair page rank?

A coworker told me that it might be the case that a link farm is using the content and I can do nothing about it. Is there a reliable way to check for something like that?

I do not like to give up so quickly is there a chance to fix this by for example moving to another domain?