Need some suggestions from the community... I have a domain targeted towards a "broad" niche. This is my main money site. I also have 20 domains that are EMD for micro niches of my main site. What is the best way to utilize all of these without getting slapped by Google? For instance, if I don't interlink them, should I be fine with them all on the same host? Would it be safe to have a link from the micro niche domains to the main money site? But no linking between the micro niche domains? Or would it be best to host them all on different c class ips to do this?