I would like to measure the feeling here on the forums, as to whether paying for separate C class IP addresses is a worthwhile SEO investment. Rough pricing is $4000 per year for 100 C class IPs. We all know the theory - Google will not trust back-links from websites hosted on the same or neighboring IP groups. So in order to trick Google into thinking our fake websites are providing genuine trustworthy links, we need to place our websites on separate IP groups. What is your opinion on this - does the IP issue still matter? I am sure I am not the only one who would like to learn more about this.