Greg Niland, aka GoodROI, who has been in the SEO community for ages, said on WebmasterWorld that he just tested the old fashion question around how important having links from different c-blocks, ...

IP addresses 172.17.x.x cannot be reached from outside our network, and that's how it's supposed to work, right? I'm in a nasty argument with one of my customers, and one of us is acting like a total ...