aspdesigner - 8:44 pm on Jan 4, 2003 (gmt 0)

Different servers won't necessarily help. If a router or especially a DNS server goes down, this can effect every site being hosted there. If you're using the same ISP, even if your sites are on different servers, they are most likely all being handled by the same one or two DNS servers. If the DNS crashes, Google can't get to any of these sites.

If you're a PR8, you're going to see a lot of Freshbot activity. Check your logs around early December to make sure you were actually crawled, and make sure it was by the deep crawler, not the freshbot (check the IP).