Yesterday Microsoft released a new downloadable version of Books Online for SQL Server 2008: http://www.microsoft.com/downloads/details.aspx?FamilyID=765433f7-0983-4d7a-b628-0a98145bcb97

UPDATE 2008-12-03 The download packages for the database engine have returned to the download page.  Make sure you download the file labeled ''SQL_Server_2008_Cumulative_Update_2'' to apply to machines where the SQL Server engine is present, and the file ''SQL_Server_2008_RTM_CU2_SNAC'' to apply to any machines that don't have a SQL ...