Hey guys,I just got huge list of expired tumblr blogs (which i've now registered) . So basically here's what I have......Page Rank 4 Blogs = 22.....Page Rank 3 Blogs = 157....Page Rank 2 Blogs = 463.....Page Rank 1 Blogs = 649....Page Rank 0 Blogs = 625.....Page authority 1-10 = 35% blogs....Page authority 11-20 = 25% blogs....Page authority 21-30 = 20% blogs.....Page authority 31-40 = 15% blogs.....Page authority 41-50 = 5% blogs....Page authority 51-60 = Only 1 blog.....Info about PA isn't 100% accurate but I hope you got it.....Now, there are few PR 1-3 blogs which have PA below 20 while some PR 0 blogs have very high PA. The highest Page Authority i saw in PR 0 blogs is 47.At first I though that it was useless to have PR 0 blogs, now i am wondering if I should keep them or not because most of them have high page authority....... Secondly many blogs in PR 2-3 have Page authority of 1, are they worth it?I also wanted to ask how do I create backlinks for my website on these blogs. Should I just place links of the articles from my real website and post ? OR, do i need to write articles on tumblr too?......Lastly, are these articles enough to get to the top of google for very competitive keywords like "stock trading" etc.