Would it be worth it to create let's say 10 free blogs all related to the same niche, do all the on page SEO correctly, update them with content bi-weekly, and build quality backlinks to them, as a free alternate to creating a blog network using domain names and different hosting accounts? I've seen quite a few blogspots which have high PR's, does Google take a link from a high PR blogspot the same as a link from the same PR blog on a domain? Just curious if the effort was put in to create and update a free blog network (of around 10 blogs) and build their PR up, then link to the money site if it would give a good boost to the money site, which would have more link building done to it then just the blog network. Any idea's on this? Edit: Also if it would be worth it, would a software to automate the process (scrape+spin+post content posted on a similar niche blog) be worth creating?