There are few new data types introduced in Microsoft SQL Server 2008.

Eg: DATETIME2, DATETIMEOFFSET etc.

Here is a good link for this: http://devlicio.us/blogs/sergio_pereira/archive/2008/04/06/the-new-data-types-in-sql-server-2008.aspx

Here is a good link: http://alpascual.com/blog/al/

Here is the list - http://microsoftstartupzone.com/content/FreeSoftware.aspx