Caching in Sharepoint (Moss2007, WSS3.0)

http://www.sharepointblogs.com/bobbyhabib/archive/2008/07/02/different-type-of-moss-caching-mechanisms.aspx

https://blogs.msdn.com/nehajain/archive/2009/05/25/how-to-automatically-reset-clear-the-blob-cache-disk-cache-programmatically.aspx

http://msdn.microsoft.com/en-us/library/aa604896.aspx