One of the most effective link building techniques out there are high PR blog posts, but in all honesty, pagerank only tells part of the story. Over the past year I've bought hundreds of PR domains for myself because the power they provide is unmatched by any other link building method. If I were buying PR blogposts, here is what I would want to know: 1) PR 2) Page Authority 3) Majestic SEO linking domains With those 3 metrics, I can tell you whether a PR site is any good or not. I don't even care about how old the site is, whether it was dropped, etc... Just those 3 things will tell me a lot about how much juice the site will pass. Pagerank - This is the metric everyone knows about, which generally tells you that the site has at least one good link pointing at it from another trusted site. Just one link you say? Yep, I've seen lots of sites, such as a PR4, which only has one PR5 link pointing at it and a few other trash links, and yet that's enough to be a PR4. That's why this metric is not very good by itself. I'm also assuming the network owner actually did his due diligence to ensure that there IS a higher PR link still pointing to the site to maintain the pagerank, otherwise you could even have a site that is going to drop PR with the next update. Page Authority - This is an SEOmoz metric which takes into account the strength of the links pointing to the page to give a score. Their web crawler kinda sucks, so they don't find a lot of links, but in general I like to see a score of 30+ from my blog network sites. Majestic Linking Domains - This is the number of domains that Majestic SEO finds linking to the site. In my opinion, this is the most important metric to judge the strength of the juice from a site. The higher the better, but I'd like to see a minimum of 20, and stronger sites will have 50+ linking domains. Those 3 things will help you judge the quality of a blog network much more so than PR alone. What's that you say? Not many providers give this kind of info? Then you really can only go off of their reviews, because otherwise you can't really judge the quality of a network with just PR. Lastly, if you're looking for a truly quality network, pay attention to how hard they spin their articles, and how long your link stays on their homepage. If they have a good network, then 4-6 days should be enough for your link to be found and indexed, but a week would be great. Regarding content, I would rather see unreadable trash than very readable barely spun content. Why? Because depending on the number of posts you ordered, the article will need to be spun VERY hard in order to pass copyscape. My preference would be that they only posted a paragraph of text that has multiple alternate sentences and tons of word level spinning instead of a longer post that just has word level spinning. If they do the spinning manually so that it's readable, even better. If it's the usual 300 words and 80% uniqueness with just word level, and they send that out to 30+ sites, I can guarantee that a good number of those posts will be detected as duplicate or it will be completely unreadable. There's just no way to spin it enough with just word level AND make it readable. Good spinning is also really the only way to ensure that their network does not get de-indexed, which is obviously very important since you want your links to provide juice forever. Hopefully this helps any of you out there considering buying your own sites or ordering posts from someone that has a network. You can even order posts, then see where your links end up and run this analysis for yourself since it uses all freely available tools. That way you can judge for yourself who has a quality network.