First Scrum Sprint Without Story Point Completed
In this blog post, Mike Caspar gives a detailed answer to the question: What if your first scrum sprint ends up with zero story points completed?
metrics
Story Point Estimation
In this blog post, Mike Treadway explains the technique of using story points for story estimation during agile planning sessions.
Measuring High Performance Agile Teams
Keith Cerny presents in this blog post, metrics that could be used to measure agile teams performance.