Geography & Geometry has much significance in day to day life, within that as a data now you can manage within your Database using SQL Server 2008 new data type - spatial, this represents information about the physical location and shape of geometric...
Cross posting from other blog - http://sqlserver-qa.net/blogs/perftune/archive/2008/02/13/3502.aspx fyi. Hope you don't want to do it!
I'm trying to cross post my blog posts on SQLBlogcasts since a week, I'm in a process to upgrade the Blog API content to the latest version... hence the delay.