I have a couple of domains that target a specific keyword within a certain specific sub-niche market (e.g infiniti cars), if I want to ensure Google gets spyders the .com domain that targets "infiniti cars"... Would you have those new domains that have "infiniti cars" keyword in the .com in a separate I.P Address of a shared hosting account instead of adding it in the same shared hosting I.P address? Just too much rumors, with only a handful of authorities stating to get a different I.P address to target the same keyword with other .com, .org, etc domains. Interesting, your thoughts?
It is important, but I guess no one know exactly how important it is. If all your links come from the same IP address, Google will know you're trying to game for rankings.