Scrum is one of the most popular Agile methodologies. However implementing Scrum is hard and most organizations end up with a ‘Scrum-but’ result.
In my opinion there isn’t one correct way to implement Scrum instead it’s more like a journey were you have to try some of the practices and find out what works(for your team) and what not.
On NetTuts I found a great tutorial where Patkos Csaba shares his experiences implementing Scrum.
A must read for every (would be)Scrum Master!