I've written an article here on SQL Team Database Backups in SQL Server. It's a first of two articles on backups and backup strategy

Backing up a database is one of the most important things you need to do when having a database driven application. It 's only all of your data in there, right? But often developers and management don't realize the importance of backups and overall proper backup strategy for the most important side of the business – data and it's consistency.

Part 1: Introduction to SQL Server 2005 Database Backups