Review!
I've woken to an email featuring none other than.... a report from Tom4Business! So, I found this thread, cracked open the excel file, and took a look. I don't think Tom will mind if I reveal the contents of the report. You get 3 columns. The left-most is a list of the top-level domains of all the tumblr's you are getting posts on. I asked for links in a somewhat obscure niche and he even had some tumblr's that were 100% devoted to the topic. Otherwise, I received relevant posts on broader tumblrs.
I sit back and think... this guy must have an insane # of these things saved up, salvaged, reclaimed, whatever... I don't know how he's done it. But it's pretty awesome! What you are looking at is a boatload of web 2.0's that are capable of passing more signals than just juice. Oh, and they are do-follow links! Let the juice flow!
The content... well. Again, I asked for a very technical niche. As I read some of these articles, it's obvious they are spun. They read like a very poor English-as-a-2nd-Language speaker with an amazing vocabulary! Which is to say, all of the words and phrases I would need to be present to send certain LSI relevancy signals are there. But the grammar, syntax, etc, is as bad as any other spun article. I'm not a fan of spun content if I sound a little harsh. But I am impressed with the depth of jargon and technical terms that appear in the article. That was a surprise.
The next column of the report simply tells you the PR of the homepage of the Tumblrs. They are all very nice to me. I see a PR4, several PR3's, and an assload of PR2's. I received 22 posts too! That's awesome. A 10% over-delivery!
The final column on the right just gives you a link directly to your article for your convenience.
All in all, I'm very pleased with this. It's going to pass some goodness to a couple of pages of mine that both point to the money page... I used this in a tiering fashion, and I'm willing to bet that I can return soon and comment on some movement. I'm satisfied, and I give this service my seal of approval as used in the fashion I did. I wouldn't go straight to a precious authority site, but I'd definitely aim this at an MFA for sure. Good work, Tom! Thanks again!
A+ - Unique and quality service!