So what can you do if your blog has been punished by Google PageRank and you want to get it back? From what I have been reading the last days is to enforce a strict no follow policy straight over the blog. After that you should resubmit the blog to Google and beg for mercy basically. According to some blogs they have done just that and made it. I really do not believe it but I will try on this blog to see if it really works.
Another thing that you must do is to stop writing paid post for Pay Per Post and other companies like that. Even if you get your page rank back for a while Google will just keep on punishing you if you continue writing for money.