If you want to make money via blogging seriously then you have to do hard work. Also, I have already done hard work for your. Here I have collected lists of Dofollow blog which helps you to increase your blog page rank and they have higher page rank as well: http://www.hacktutors.info/ http://www.techfreakstuff.com/ http://www.smartbloggerz.com/ http://techchunks.com/ http://techpatio.com/ Here is 50 more lists: http://www.hacktutors.info/2010/08/50-dofollow-blogs-to-increase-your-page.html Hope it helps you Happy blogging!
Yes. you're right. Dofollow can help us to increase PR. But i think it's difficult to gain our PR. My site doesn't change for several month ago.