SQL Server 2008 RTM Books OnLine (BOL), latest and update your local copies
Ok its time to update your local copies of SQL Server 2008 Books OnLine (BOL) too, as we have RTM version in hand.
You may have installed it during CTP releases and even during short-time of RC0 release, but as always it is a good practice to update as the current installation is latest and updated.
MSDN Developer Center page provides wide range of users to download the BOL as follows:
Download Books Online from the Download Center
So don't wait and you can easily download the relevant language BOL to update your local copies.
Since the days of SQL 2000 version I have been doing the same and it proved very useful when you need to find about any information SQL Server in particular!