http://blogs.msdn.com/sharepoint/archive/2008/05/06/sharepoint-backup-and-restore-resources-redux.aspx

Sharepoint Site Backup
http://rehmangul.wordpress.com/2009/04/18/sharepoint-site-backup-and-restore/

Backup & Migration

http://webborg.blogspot.com/2008/01/backup-restore-and-migration-of-sites_21.html

Sharepoint file restore

http://vspug.com/mcotw/2007/03/20/sharepoint-file-restore-utility/

Simple backup & restore

http://sharepointguys.com/matt/sharepoint-administration/sharepoint-backup-and-restore-made-simple/

http://blogs.msdn.com/sharepoint/archive/2007/10/25/sharepoint-backup-and-restore-resources.aspx

http://www.sharepointjoel.com/Lists/Posts/ViewPost.aspx?ID=246

I completely agree as Sharepoint is both a repository-backend of so many items (documents, data, tasks, calendars) and also a gateway to many others (ERP, other apps).