Hi all, this is my first post here on BHW. Though I've been lurking for quite a while, I figured this would be a great time to join. I had a question about Private Blog Networks and what is technically a PBN. I plan on launching a niche website for each of my main (ecommerce) site categories. I have 3 main categories in this main ecommerce site, so I'd require 3 websites (one for each of these categories). The sites would be targeting SERPs much harder than my main site. If i was to build a site for each one of these categories, with SEO optimized products that target serp ranking much harder than my parent site, along with having link-building campaigns for them, all whilst linking the "buy" link to my main site, would that be considered bad in google's eyes? Content would be real, and useful to the public. I would also rather openly claim the sites as sister sites to my ecommerce platform. Thank you guys in advance!