My post over at the main Rackspace developer blog about Sitecore publishing strategies was something I’d like to link to from here.
The crux of it is this diagram illustrating how we can make use of SQL Replication to move Sitecore content between data centers, but still take advantage of Sitecore publishing to promote content to the live site. The blog at Rackspace discusses it in some detail, so I’ll just point out that the idea is to let SQL Server Replication do the hard (and potentially slow) work of synchronizing content around the planet, while Sitecore publishing can be the plain old HTTP publish operation we know and love from Sitecore:
Sitecore Architecture 