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Hey Robbie, Of course you're never entirely sure what Google will do, but if you're only changing host - nothing else - you should have no problem. Do not: Change ownership of the domain; Make any major content changes (such as titles); Add large chunks of content - keep it to a minimum; Make any website template changes; It's very important that all that's changing is the host. And of course keep an eye on your rankings while doing the migration. Perhaps use a SEOmoz campaign for that. They also do crawl tests so that should be good. Good luck!

We generally update the Linkscape index once a month. There were two releases in November (one at the very end), and then there will be one this week. It's a little later than usual because of the downtime for the holidays. The Calendar that Jgower shared will always show you the upcoming release date and the previous release dates.

Glad to help Robbie and it is great to get a report back on what happened. Thanks so much.