New RBS whitepaper just published
RBS is an add-in technology for SharePoint that stores large binary data such as word documents outside of the primary SQL database. It is useful to move some of this data onto less expensive storage media.
A new paper on Remote Blob Storage (RBS) has just been published which is really helpful in understanding it.
Get the paper here.
Referenced from this SQL Server page.
And it was authored by these guys.