I have about 5 sites right now on one regular hosting account (~$70/year). I'm planning on building up to 20 total sites throughout this year. My hosting account is about to renew and I'm wondering if I should just switch to SEO Host and get 5 Shared C Class IPs(~$120). This way I could have 4 of my sites on each IP, rather than all 20 on one IP. Each IP will also obviously have sites from other people since they are "shared" (cheaper) IPs.
Is this a necessary switch for me?
I'm planning on getting Ultimate Demon and using it to build links to all my sites. My thought is that I could get slapped if Google sees backlinks from the SAME PAGES leading to my sites on the SAME ONE IP. Is this a valid concern?
Please me help me understand this