In the past few months I have bought a few aged domains for various reasons. A few of them have decent PR 2-4 and I am not using them for anything. I wanted to use these sites to create some backlinks to some of my niche sites and hopefully give my niche sites a boost in the SERPs. Currently I only have 1 bluehost account and as far as I understand linking from one domain to another on the same account (IP address) does not count for much if anything in googles eyes. What is a good way to get some good link juice from my age domains. Do I need to host each domain on a different account? Could I use a hostgator resale account and then host each domain separately?