I?ve been doing SEO for a long time and there are 2 words that have never went together well, SEO and Blasts, the 2 just don?t sit well if the point of SEO is the game a search engine by appearing to be naturally increasing your sites positions. There have been lots of posts recently about people saying that the recent Panda update is now targeting private blog networks and my theory is that this isn?t the case. The culprit is Scrapebox and Xrumer. Think about it, you don?t blast your money site with these tools, why? Because the link quality is poor, it doesn?t seem natural and you don?t want to incur a penalty. So why do you think it?s then ok the Blast your pages that are on other sites? They will get the same penalties. And if blog network user 1 blasts his pages and then blog network owner 2 does the same thing then this is a red flag to the Google spam guys and very easy to spot. It doesn?t matter that the link is part of a pyramid or a network Scrapebox blasts will have the same effect anywhere you use it. So although Google might be on the lookout for content patterns from one spun article being posted on 400 blogs, blasting those 400 pages over a short period of time from wordpress comments is of course going to flag an issue. SEO in 1998 was about appearing to naturally improve a website, it?s the same now, natural grow the is the only thing that Google can?t determine as it should have no common path. So to round up, if you are spending decent sums of money on services like my Supernova or any of the others it?s probably best to check with the service/network that they want you blasting there blogs.