Hey guys, after all the massive sharing of information from our members such as Leith, lightningblitz, t0mmy and a few others.. I decided to take part and do a small case study, just to clear up some doubts, not only that, the opinions with false ideas were too high in this thread from those who don't test things themselves. I'm going to show you how tumblr blogs can still rank your keywords, and that it's still a perfect site for you to create your web 2.0's on. So how did I test this? I chose a keyword from my site that after 7 months has never budged, never appeared in the serps, nada.. it was the perfect keyword as I had never done any backlinking to it, it is also a category page. The competition for this keyword is high, so it's definitely one of the reasons as to why it never budged. I went to The SEO and kindly asking him for some expired tumblr blogs with high metrics, so that I could test this out and he kindly provided me with 10 of those bad boys, all high PA. I then registered and created only 5 blogs/posts that were directed to this specific keyword and it's page with a 100% exact match anchor text, on all 5. I wanted to test with only 5 to see how powerful these blogs and it's effects can have. The second step was firing up GSA SER, and I built backlinks for about two weeks, I choose to drip feed it but it wasn't really that necessary.. Then today, it jumped from - to.. Serpbook Serpfox In any case, tumblr blogs are still just as powerful. I've used and continue to use it for my link building strategy.